67 camaro 373 posi 4spd 350 edelbrock 425hp kit, roller valvetrain. Holley 650. I have a bad stumble when pulling out to the point it feels as if im in 3rd gear until the rpms build up and then it kicks in. There is still a miss through driving speed but nothing like the intial pull out. It seems that at low rpm it is lugging horrible. Once the car is warmed up it is still a problem, but not as bad. I pulled a couple plugs on each side and they are wet, the distributor cap looks good.The car starts easily and does not smoke, not sure it its running to rich or if maybe the advance in the distributor is not working properly. Any help is appreciated.