I recently bought a Holley to replace the QuadraJet on my 454 and I need help identifying the carb to get a rebuild kit. The guy I got it from said it was a 750, but I'm not sure. It has no choke and the numbers on the side are 8050B and on top are 75493. Metering block reads 11761. What carb do I have, and is it good for a 454? Kit #? Any help is appreciated, thanks!