Finally test drove the 70 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Thebrownturd · 09-15-2013, 01:07 AM

After getting the hood aligned, grill back on, and getting the lights and indicators working. I was able to drive it. The only problem is that I almost had it floored and I couldn't get her over 55. No strange noises or smoke. I got an hei, new carburetor, and water pump but, I hadn't had any problems before. Does anyone have any idea where to start?
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lha1992 · 09-15-2013, 04:39 AM

Well whats your rear end gear ratio setup? 3speed, 4speed tranny? OD?

HSRACER · 09-15-2013, 08:37 AM

Always check to see if your carb is opening all the way. Have someone sit inside and floor it with the engine not running and see if there is still any movement in the throttle at the carb. This has happened to me as I was on the floor and the carb was only have open!

Also check you timing if it is retarded it could slow you way down. Good luck.

El Campo · 09-15-2013, 09:52 AM

Is it up shifting? I had a turbo 400 stick in a low gear once and had the same problem.
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Thebrownturd · 09-15-2013, 02:06 PM

It a 3 speed 3/4 ton with 4:10 gear ratio. I no it's not ment for speed but I need to get it to go highway speeds.
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Thebrownturd · 09-15-2013, 02:12 PM

Quote:

Originally Posted by El Campo

Is it up shifting? I had a turbo 400 stick in a low gear once and had the same problem.
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That might be what's wrong. I messed around and found out it was stuck in 4 hi. Not sure how to it out though
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El Campo · 09-15-2013, 05:59 PM

Linkage?
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09-15-2013, 01:07 AM	#1
Thebrownturd Registered User Join Date: Jun 2013 Location: Northern Nevada Posts: 233	Finally test drove the 70 After getting the hood aligned, grill back on, and getting the lights and indicators working. I was able to drive it. The only problem is that I almost had it floored and I couldn't get her over 55. No strange noises or smoke. I got an hei, new carburetor, and water pump but, I hadn't had any problems before. Does anyone have any idea where to start? Posted via Mobile Device

09-15-2013, 04:39 AM	#2
lha1992 Registered User Join Date: Apr 2010 Location: Everett, WA Posts: 504	Re: Finally test drove the 70 Well whats your rear end gear ratio setup? 3speed, 4speed tranny? OD?

09-15-2013, 08:37 AM	#3
HSRACER Registered User Join Date: Sep 2007 Location: Katy TX Posts: 1,268	Re: Finally test drove the 70 Always check to see if your carb is opening all the way. Have someone sit inside and floor it with the engine not running and see if there is still any movement in the throttle at the carb. This has happened to me as I was on the floor and the carb was only have open! Also check you timing if it is retarded it could slow you way down. Good luck. __________________ HSRACER Slammed 53 5 window Blown/Bagged 54 Pickup Patinaed 67 LS stepside Supercharged 67 Nova Bagged 69 Suburban Turbo'ed 5.3 LS

09-15-2013, 09:52 AM	#4
El Campo Registered User Join Date: Jul 2011 Location: El Campo, Tx Posts: 1,246	Re: Finally test drove the 70 Is it up shifting? I had a turbo 400 stick in a low gear once and had the same problem. Posted via Mobile Device __________________ 72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!!

09-15-2013, 02:06 PM	#5
Thebrownturd Registered User Join Date: Jun 2013 Location: Northern Nevada Posts: 233	Re: Finally test drove the 70 It a 3 speed 3/4 ton with 4:10 gear ratio. I no it's not ment for speed but I need to get it to go highway speeds. Posted via Mobile Device

09-15-2013, 05:59 PM	#7
El Campo Registered User Join Date: Jul 2011 Location: El Campo, Tx Posts: 1,246	Re: Finally test drove the 70 Linkage? Posted via Mobile Device __________________ 72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!!



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