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-   -   Top end swap (http://www.njfboa.org/forums/showthread.php?t=51049)

String 04-24-2010 10:58 PM

Top end swap
 
If I were to swap out the old intake manifold, carb and distrib with a non-cc carb and distributer which setup would be recommended. Has anyone done this before and what did you use or what would work? It would be for 87 z28 305 w/t5 trans 3.73 posi. Thanks!

WildBillyT 04-24-2010 11:10 PM

For you? Probably an Edelbrock performer, Holley 600VS, and an HEI.

JSPERFORMANCE 04-25-2010 08:26 AM

Remember Bill, its a stick shift manual secondaries are probably better..

WildBillyT 04-25-2010 09:42 AM

Quote:

Originally Posted by JSPERFORMANCE (Post 699703)
Remember Bill, its a stick shift manual secondaries are probably better..

Good point! With the 3.73s too.

String 04-26-2010 08:56 PM

Thanks for the info. I believe the quadrajet on it now has vacuum secondaries. Would that be because the stock gears were larger? They were like 2.29s or something horrible like that

WildBillyT 04-26-2010 09:23 PM

Quote:

Originally Posted by String (Post 700173)
Thanks for the info. I believe the quadrajet on it now has vacuum secondaries. Would that be because the stock gears were larger? They were like 2.29s or something horrible like that

Not really. It is an emissions/economy carb from the factory.

BonzoHansen 04-26-2010 09:34 PM

I think all q-jets were VS

Tru2Chevy 04-27-2010 07:51 AM

Quote:

Originally Posted by BonzoHansen (Post 700186)
I think all q-jets were VS

Yes, they are.

- Justin

85berlinetta 04-30-2010 03:28 PM

In high school I had a 1986 z/28 with the LG4 305 and t5. I swapped to an older style (non cc) hei distributor, performer rpm intake manifold, and 1406 edelbrock vs carb. I did have stock gears though (cant remember what they were). This set up worked great and I would recommend it to anyone. You may see a benefit from a mechanical carb. I would stay in the 600 cfm range though.

String 05-01-2010 09:22 AM

Yea, I was told by a tech from Jegs that this dizzy will work MSD 121-8362. And I already have the performer 2104 manifold. My brother has three carbs, just gotta see what they all are and if one of them will work.


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