If I'm selling new Indy heads, and the customer is looking for something that's "fully ported", I just get them CNC'd from Indy, then I do my valve job and prep.

On my bench, after the VJ and prep, a 440-1 CNC 325 flows 360-365.
A CNC 345 goes 380-385.

I'm sure someone has a program that flows more than the Indy 345...... But so far, those have been the best 440-1's to cross my bench.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads