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01-12-2014, 06:59 PM
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#1 |
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Registered User
Join Date: Sep 2013
Location: Gonzales, La
Posts: 1,441
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Re: Not sure what to do
I have a 454 bored 0.040 over with a mild comp cam .218/.224 @. 050 lift. With 0.510 lift total, RPM air gap intake, holley 770 avenger, HEI, timing 18 degrees initial and 40 degrees mechanical all in at 2800 RPM's no vacuum advance, 8.5:1 compression, turbo 350 tranny with 1800 stall, 3:08 rear gears. I get 10-12 city/hwy mpg. buddy with same teanny rear gear with a SBC 350 about same HP/TQ ratings get 14-16 mpg. I like my BB,,,don't change it out. You may regret it later.
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01-12-2014, 07:17 PM
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#2 |
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Registered User
Join Date: Nov 2009
Location: Palm Beach Florida
Posts: 80
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Re: Not sure what to do
i would sell the big block and get a 6BT 12v.
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01-12-2014, 07:27 PM
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#3 | |
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Senior Member
 
Join Date: Aug 2008
Location: Cedar Park, Texas
Posts: 7,500
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Re: Not sure what to do
Quote:
Sounds like its way too late for that advice... |
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01-12-2014, 09:42 PM
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#4 | |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,115
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Re: Not sure what to do
Quote:
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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07-06-2014, 10:31 PM
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#5 | |
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Senior Member
Join Date: Aug 2008
Location: Cedar Park, Texas
Posts: 7,500
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Re: Not sure what to do
Quote:
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07-06-2014, 11:13 PM
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#6 |
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Registered User
Join Date: Jun 2014
Location: New Bern, NC
Posts: 177
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Re: Not sure what to do
I plan on installing a 200-4R behind my BB first. If that doesn't improve the mileage, I'll just install a 600HP Buick Grand National turbocharged V6 that's in my 78 Malibu. That should wake the truck up and get great gas mileage. Turbocharging and small engines make gobs of torque and get good mileage. It's the fact that most people think *bigger is better*. My Malibu gets about 24mpg and makes 600 rear wheel horsepower.
__________________
1971 Cheyenne Super - Factory Big Block - Second (1987-89) & Fourth (2014-) Owner - To be restored 1978 Turbo Malibu - Owned since 1986 1987 Grand National Aerocoupe -1 of 1 1988 LeSabre T-Type - Supercharged |
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01-12-2014, 08:51 PM
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#7 |
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Project 7dos
Join Date: Aug 2001
Location: Abilene, Texas
Posts: 876
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Re: Not sure what to do
Is it your daily? If not, why worry about it? If it is, then I can understand, and would buy a beater to drive daily.
__________________
7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290 |
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07-06-2014, 07:07 PM
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#8 |
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Senior Member
Join Date: Feb 2012
Location: chillicothe, illinois
Posts: 690
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Re: Not sure what to do
Im heading out to look at 70 3/4 ton in about 15 min. Its a manual steering truck and would like to know if I can add power steering to it with out any frame modifications? YES I am regretting selling my first 70 but now have a new plan. I will post pics if she comes home with me.
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