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Re: carb questions
Frankly, unless you're going all-out race, and don't care about part throttle mixture, the typical Holley is not a good choice. I "race mode" the 4160 Holley (or its offshoots and clones) can be adusted further to accomodate different power valve vacuum ranges, have two accelerator pumps adjusted to just the right volume for best launches, meter the full-flow mixture quite well, and deliver a richer secondary flow faster than the Rochester. That's all great so long as your throttle only ever sees two positions - Idle or wide-open - Nothin' in between.
For a street carburetor, even a Carter ThermoQuad or AFB would be a better choice, although inferior to the QuadraJet. Despite the marketing hype and low price, they're not "all that."
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