I have a 406 with 10 to 1 compression, Trick Flow heads, Performer Intake, General Kinetics 268 cam, recurved HEI distributor,headers and dual exhaust, 2400 stall, and 3.42 posi, all in a 78 Camaro. My problem is my part throttle response seems soggy. Full throttle the car will scream but part throttle it seems like I have to press the throttle further than I should need to to accelerate. I have tried several carbs and 2 different distributors, but no change. Any suggestions are greatly appreciated.