Originally Posted by Monaro406
The airgap's certainly are a great little manifold. I'm seriously thinking about swapping out my Super Victor for one to make my 383 more streetable. It's all fun and games up high in the rpm range, but a little bit too mild and grumpy down low. Plus they never generate decent vac at idle.
Have you tried using a 4-hole spacer between the carb and the Super Victor? That can increase the speed of the intake charge and improve low end torque a little. It also helps send a stronger signal to the carb which can improve the idle.