Some good information...I just met the "carburetor expert" in the valley. He knows Holly, Edelbrock, Demon, Carter, and Autolite like no other. Has 26 years experience. Can tell you ALL about metering systems, power valves, jets, secondaries, accelerator pumps, and everything else for carburetor performance, economy, and efficiency.
I talked to one guy who "knocked" .38 seconds off his "1/4 mile time" by having his "Holly duel quad" setup tuned.
The experts name and phone number is: Gregg Kenyon...602-942-2465...lives just east of Interstate 17 off Greenway.