I have a 68 440 hp motor which I had redone. It has 10.1 compression, A lunati voodoo cam Adv duration int/exh 270/280. Duration @.050 int/exh .515/.530. It is a roller cam. There are Edelbrock rpm heads with full int porting,full exh porting (stock gaskets) no chamber work. It has a edelbrock CH4B intake ported The intake was gasket matched. Port plenum, drop divider. The motor has 458 horse at the crank and 500 ft pounds torque. It was done 3 years ago and basically went into the body shop. It had a quick fuel 780 on it. The car is running terrible, flooding,surging and popping. It will not improve with any adjustments I wanted to go with an edelbrock 750 or 800 electric choke vacuum secondaries. There are several models. I was looking for someone who has similar set up for advice. The quick fuel carbs people swear by but I would prefer to go back to single feed and a stock appearance. I am not going to race or beat on car just looking for reliability. The motor is in my 1968 Plymouth sport fury convertible. Thank You sorry for long post.