John Osborne Qjet. Cranks quickly even without a choke, idles nice and low. Has great throttle response and doesn't starve at WOT. Damn near perfect-my 68 GS is almost as smooth as my 07 Tahoe. Patrick
I have only run a q-jet. Something tells me that the 4 equal holes on a single plane manifold will better evenly distribute the fuel than a spread bore. I have at least 14 yrs exp with q-jets, I have 5 different performance books on them. According to all the modifications I should be slightly above 1000 cfm. The best q-jets to modify or run were on the pontiac 455 cars. The big body 4mv's. They can also be had on the early 70's full size buicks. They need extensive cleaning up and blending with a grinder, hand file, drimel. Then I even added lock tight weld in places to smooth out bumps and stream line the air pathway. Lots of other mods as well. Rainy day fun, all for under 100 bucks. Run an electric pump with a bypass regulator and return line to the tank, and you wont have any running out of fuel issues on the top end, unless your running a 700 hp drag racer.
