Something new - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ronm69c10 · 03-13-2021, 09:20 PM

I have a 69 c-10 with a 454 from a p-30 motorhome. Engine was rebuilt and mated on a 71 chassie.It had a 650 quadrajet on that was alot of problem. I found a 750 quadrajet at a good price.Ran o.k.for as year or so. I am having problem's with carb now. After having a few eldelbrock in the past,it's time for a edelbrock and manifold!!! The motor is a 80-84 that has header's and i don't know what was done during rebuild.The prior owner would not return my call's.And the car lot that sold the truck was not any help.The p-30 in 80-84 are suppose to be 230 horsepower.This truck is way to peppy to be 230 h.p.Maybe 330 h.p.? Anyway I am looking for advice on carb. and manifold.

**LockDoc** · 03-14-2021, 08:03 PM

-
Moved.

Someone might be able to help you in this Forum.

LockDoc

hugger6933 · 03-14-2021, 08:26 PM

That motor probably has the peanut port heads they are called that because the intake runner volume is about the size of a peanut compared to the older big block heads Also the compression is gonna be way low. Like 8:1 I have seen them with 7.8:1. But I have had several trucks with the bigblock that had the TBI injection and I unhooked the single wire inside the cab by the ECM and ran up the timing and WOKE up that truck in every occasion. Now I know you dont have any of that stuff just said that to say this the trucks were so detuned that a little tinkering can even wake up the boringest of the 454's. Now back to your question I would get a 750 Edelbrock[ 1407 I think??] and find a intake like a performer or one step above that and you will be happy

03-13-2021, 09:20 PM	#1
ronm69c10 Registered User Join Date: Jul 2017 Location: calabash n.c Posts: 12	Something new I have a 69 c-10 with a 454 from a p-30 motorhome. Engine was rebuilt and mated on a 71 chassie.It had a 650 quadrajet on that was alot of problem. I found a 750 quadrajet at a good price.Ran o.k.for as year or so. I am having problem's with carb now. After having a few eldelbrock in the past,it's time for a edelbrock and manifold!!! The motor is a 80-84 that has header's and i don't know what was done during rebuild.The prior owner would not return my call's.And the car lot that sold the truck was not any help.The p-30 in 80-84 are suppose to be 230 horsepower.This truck is way to peppy to be 230 h.p.Maybe 330 h.p.? Anyway I am looking for advice on carb. and manifold.

03-14-2021, 08:03 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,818	Re: Something new - Moved. Someone might be able to help you in this Forum. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

03-14-2021, 08:26 PM	#3
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Something new That motor probably has the peanut port heads they are called that because the intake runner volume is about the size of a peanut compared to the older big block heads Also the compression is gonna be way low. Like 8:1 I have seen them with 7.8:1. But I have had several trucks with the bigblock that had the TBI injection and I unhooked the single wire inside the cab by the ECM and ran up the timing and WOKE up that truck in every occasion. Now I know you dont have any of that stuff just said that to say this the trucks were so detuned that a little tinkering can even wake up the boringest of the 454's. Now back to your question I would get a 750 Edelbrock[ 1407 I think??] and find a intake like a performer or one step above that and you will be happy



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