ive got zz4 with gm alluminum heads edelbrock high rise intake zz hot cam roller rockers and some other little things. right know its got a holley 750 double pumper carb. im going to be using the car as a daily driver and want a carb that will get better gas milage but not kill the horspower. does anyone have any suggestions?

For better mileage, most guys go with a carb having vacuum secondaries. With you're 350, you'd probably want to stick with a 650 or 700 cfm carb.

@70mph, 2000rpms,(highway) attached sig achieves 21.5 mpg. Vac sec 750 holley w/ 69 primary jets, 10.5 PV and black secondary spring. However, the gearing is a major contributer to the MPG.

http://hobbystage.net/camaro/media.cgi?site=jcl1358&folder=*&id=1059622044-002365

I'd like to try a smaller carb, but it runs so good i don't want to "F" with it!

good luck
joe c