bullet1

just wondering what a good holley carb set up would be for my 68 400.looking at 750 holley vacuum secondarys has a torker intake.not sure what else has been done to motor just picked up car.maybe 750 to large.seems like the quadrajet is too small.pretty sure its not the correct one on it now.
thanks for any info.

joe_padavano

The Qjet is already 750 CFM, if the air valve on the secondaries is adjusted properly.

bullet1

all qjets 750 cfm?never realized that always thought they were around 600 cfm?i will get numbers off from carb to find out what i have
thanks

Run to Rund

Qjets are 750 or 800 cfm. The torker is designed for a spread bore carb, so the jet is a much better choice than a straight line Holley. The Holley spread bores are OK.