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10-28-2019, 07:29 PM
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#26 | |
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Registered User
 Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: Does this look right?
Quote:
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10-28-2019, 10:14 PM
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#27 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Does this look right?
Ok drove the ramp truck today and it did fine. It did back fire once but after that it did fine. It was right after I cranked it up for the first time. It cut off and when I went to refire it it back fired. I didn't have anymore problems after that it drove good and the brakes even seemed better. I guess the vacuum leak was hurting the booster effect on them.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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10-29-2019, 07:22 AM
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#28 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Does this look right?
The missing link COPO Corvette motor! Backfiring through the exhaust when you let off the pedal is an exhaust leak. Whats the block casting number?
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
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10-29-2019, 09:23 AM
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#29 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Does this look right?
No backfiring through exhaust. It popped through the carb but after that it was fine the rest of the day. It could have been me trying to cold start it also. Pumping the gas pedal while cranking it! I drove it all afternoon and cut it off several times and never did it again.
Fixing to go drive it again to the shop to work on pulling the 68 cab off I hope.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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10-30-2019, 10:01 AM
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#30 | |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,335
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Re: Does this look right?
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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10-30-2019, 06:36 PM
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#31 |
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Registered User
 Join Date: Aug 2019
Location: Cheraw
Posts: 1,305
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Re: Does this look right?
As others have said 307's of that era did come with just 2 carb studs and nuts.
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10-30-2019, 08:22 PM
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#32 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,335
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Re: Does this look right?
I guess with a cast iron base and a vacuum underneath, the carbs just got sucked down onto the gasket!
 One thing that Chevrolet got bit on the booty with though was putting 2-row radiators in the '71 big cars with the 400 small block. We had a line of them in the service lot with severely overheated engines. All got a retrofit to a higher row count radiator. Ever seen a blue torque converter!? That's some hot stuff, right there.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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