Originally Posted by greg hazlett
Sorry; I am in the mustang community as well and I am just not impressed with 20psi=90hp...guess we will agree to disagree on this....and if you use 87 you lose 9 hp so my ratio is even worse, 20 psi=83 hp.
We can't take the mustangs into account though. Twice the cylinders and a lot more displacement. If you want to compare apples to oranges, I'll be picking up about 160 hp off compression, 5.4 cubes, and some new heads compared to my stock 2v gt setup and it will go nuts when I boost it.