I wonder if the power were better to begin with, if the percentage of change/gain would still be the same, with the same amount of boost per rpm point.

I mean, it should be pretty easy to get close to another 100hp out of that 318 with some head work, headers, faster cam, etc.

If you made 500hp with xx boost from your 229hp starting point, that’s 2.18 times the original power output.

If you started at 330hp, would that same xx boost still increase the output 2.18 times(719hp)?

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