Quote:
Originally Posted by Pampered-Z
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!
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The HPBooks
Rochester Carburators book has a bunch of this stuff.