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Pampered-Z · 02-20-2008, 08:50 AM

If you engine is stock leave the carb as is. If it's modded you can get different metering rod and such that will help. GM offered a kit years ago to put the ZZ4 engine into 3rdgens and it came with a different ECM and the carb parts. I doubt they still sell it but you can probably find the part numbers, and then get a chip burned.

I had a Compucam emmisions cam and Edelbrock headers in my 84 (305HO) and the stock carb feed it fine with only a few mods. There is a book ( I once had - Justin? ) that about modding Q-jets, some of the simply tricks work wonders!

02-20-2008, 08:50 AM	#10
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	If you engine is stock leave the carb as is. If it's modded you can get different metering rod and such that will help. GM offered a kit years ago to put the ZZ4 engine into 3rdgens and it came with a different ECM and the carb parts. I doubt they still sell it but you can probably find the part numbers, and then get a chip burned. I had a Compucam emmisions cam and Edelbrock headers in my 84 (305HO) and the stock carb feed it fine with only a few mods. There is a book ( I once had - Justin? ) that about modding Q-jets, some of the simply tricks work wonders! __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!