[427Aggie]

Dean the best suggestion I can give you is to put the thing on a dyno and tune it. It will save you alot of heartache in the end.

Depending on what your doing with the car I wouldn't run the 40's they will just make tuning it that much harder. If your going to track the car only then set it up for that..if your going to drive it on the street then have either 2 configs or just run the street setup. If you remember David's Kirkham we only had 37's in it and didn't have any issues with fuel. THE DYNO will save your sanity.

The biggest problem is finding someone that has a slew of jets so you can set it up while tuning it.