Originally Posted by Maxt' post='915821' date='Jan 31 2009, 03:53 PM

I know the way people were using pressure correction, it was pretty coarse , just a percentage correction of the main map. I think the low speed reversion of the p-port would make that an interesting tune.

Whats funny is I did a 56 chevy with a throttle body system as well, holley commander 950 pro, it was setup for speed density by another tuner as per holley instruction, changed to alpha n, 65 rwhp gain. https://www.nopistons.com/forums/pub...IR#>/smile.gif . The holley has the option of alpha n below x rpm.. nice option.