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07-02-2010, 10:54 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: Toronto Canada
Posts: 265
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How fast can I go!!
So I took the truck for a long ride 2 hours is long for me. Coming home I decided it was time to see what she could do. The best I could get her going was 81 MPH. I think this is low???
71 stock 350/350 no posi 3 speed (I think) Full size fleet |
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07-02-2010, 11:06 PM
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#2 |
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LIGHT' EM UP!!!!!!!!!!
Join Date: Nov 2009
Location: Collinsville Oklahoma
Posts: 243
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Re: How fast can I go!!
Well if it is stock and never rebuilt maybe 81mph if you give her a good rebuild and port and polish. And a intake/carb setup you will be there in less then 2hrs lol
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 BONDO IS YOUR FRIEND WOULD YOU EVER USE YOUR FRIEND  1972 custom 10 longbed current 360 building a racing 355 |
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07-02-2010, 11:08 PM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: How fast can I go!!
either your speedo is off, or your truck is getting real sick.
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07-02-2010, 11:43 PM
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#4 |
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Registered User
Join Date: Apr 2010
Location: East Wenatchee, Wa
Posts: 30
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Re: How fast can I go!!
do you have a granny 4 speed?
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07-02-2010, 11:53 PM
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#5 |
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Registered User
Join Date: Jan 2008
Location: Tejas
Posts: 691
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Re: How fast can I go!!
granny four speed still has a 1:1 ratio in fourth like any other typical '71 trans. I would say check your secondaries, but I can cruise well over 80 in the primaries with 3.73's and 28" tires
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'72 cheyenne super step, '05 long bed gmc |
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07-03-2010, 12:25 AM
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#6 |
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Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: How fast can I go!!
gee my WORN OUT 350 3spd 373 combo CAN do better than that on a LONGGGGG streach of road.
ps that was on drum brakes and no telling HOW old suspension parts  haha ive gotten smarter lol 
__________________
John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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07-03-2010, 12:39 AM
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#7 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: How fast can I go!!
I can bury mine until it points to the "H" in MPH at the bottom of the speedo...
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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07-03-2010, 02:42 AM
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#8 |
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Gone to greener pastures
 Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: How fast can I go!!
I'm with Andy (LHM), I think you have a speedo or calibration problem.
Whatcha got for a rear gear? What size tires are you running? How many Rs are your turning at 81 MPH?
__________________
'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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07-03-2010, 04:48 AM
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#9 |
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Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
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Re: How fast can I go!!
i hit mine at 100 before but i wanted to get out of it so i let off because i didnt have a tach and i didnt wanna blow it..
__________________
1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
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07-03-2010, 06:31 AM
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#10 | ||
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: How fast can I go!!
Quote:
__________________
You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
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07-03-2010, 06:46 AM
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#11 | |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: How fast can I go!!
Quote:
My 70 had a 307 and a 3 on the tree. I know I had it past 100. But that was the 80's too. I remember it was blowing smoke too.
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84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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07-03-2010, 07:24 AM
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#12 |
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Registered User
Join Date: Jan 2007
Location: Toronto Canada
Posts: 265
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Re: How fast can I go!!
I think my speed o is ok
How about this. my foot was on the floor at 81 maybe I'm not getting full throttle cable length? She felt like she had more to give. How do I fix that? Washers behind the mounting brackets? That will bring it off the Firewall. |
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07-03-2010, 08:50 AM
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#13 |
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Redefining LowBudget
Join Date: Mar 2009
Location: lebanon Cow Hampshire
Posts: 4,538
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Re: How fast can I go!!
ok 2 things
these fancy road gps will show 3 digits in the mph and there is no pin near the zero on our speedo's Take a pic of it ?? it might be a bent bracket...I know when I put the new carpet in I had to adjust mine....yours should be a cable?? |
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07-03-2010, 11:48 AM
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#14 | |||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: How fast can I go!!
Quote:
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
Quote:
Quote:
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07-03-2010, 02:38 PM
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#15 | |
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Registered User
Join Date: Jan 2007
Location: Toronto Canada
Posts: 265
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Re: How fast can I go!!
Quote:
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07-03-2010, 03:16 PM
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#16 |
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Registered User
Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,425
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Re: How fast can I go!!
I THINK SOMEONES GETTING THIER LEG PULLED.
JOHN
__________________
junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES//LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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07-03-2010, 05:20 PM
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#17 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: How fast can I go!!
even an inline 6 with a 3 speed (manual or automatic) should be able to hit 100.
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07-03-2010, 07:21 PM
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#18 | |
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Chevy nut
Join Date: Jun 2007
Location: Springfield, Illinois
Posts: 2,266
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Re: How fast can I go!!
Quote:
__________________
84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!" |
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07-03-2010, 07:23 PM
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#19 |
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Registered User
Join Date: Jan 2008
Location: Tejas
Posts: 691
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Re: How fast can I go!!
maybe try a fuel filter, or timing
__________________
'72 cheyenne super step, '05 long bed gmc |
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07-03-2010, 08:07 PM
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#20 |
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PROJECT 7DEUCE
Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,606
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Re: How fast can I go!!
Try it on a tailwind type of day..
__________________
GO BIG GREEN  GO DUCKSMEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P.. |
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07-03-2010, 08:47 PM
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#21 |
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Registered User
Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,425
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Re: How fast can I go!!
Many years ago , i had a good friend that owned an old chevette scooter (we always refered to it as his 3 cyl. 2 speed sh!t box) & it would go faster than that. This has to be a late april fools joke.
john
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junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES//LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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07-03-2010, 09:22 PM
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#22 |
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Registered User
Join Date: Jan 2007
Location: Toronto Canada
Posts: 265
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Re: How fast can I go!!
Its no joke, I traveled about 2 miles with the foot to the floor and got nothing higher then 81. So I'm 99% sure that the pedal hits the floor before the throttle is fully open. I suppose I can simply check this by having someone pres the pedal to the floor and then check under the hood to see if there is anything left the linkage. How do I fix it?
I have only put one tank of gas in her since I finished the truck. I have had lots of problems to work out and this is the last (I hope) My timing was off before the test it was at 4 degrees, I had it fixed and its at 8 degrees now. That took away a hesitation. I knew it was off and I have not been able to do a burn out yet. I of course figured it was the timing now I am hoping the pedal issue? |
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07-03-2010, 10:09 PM
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#23 |
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Registered User
Join Date: Dec 2005
Location: Bellingham, WA
Posts: 167
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Re: How fast can I go!!
Try going down hill...
__________________
70 GMC LWB Fleetside, 402BB, TH400 90K original only cost $50. |
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07-03-2010, 10:12 PM
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#24 |
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Registered User
Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,425
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Re: How fast can I go!!
81 IS PROBABLY FAST ENOUGH.
ARE YOU A TEACHER? OR A HIGH SCHOOL STUDENT?
__________________
junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES//LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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07-03-2010, 11:59 PM
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#25 | |
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Registered User
Join Date: Jan 2008
Location: Tejas
Posts: 691
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Re: How fast can I go!!
Quote:
__________________
'72 cheyenne super step, '05 long bed gmc |
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