[Justin00Stang]

what size pulley in inches? if its the 3.625 and not the 3.375, with the conservative ford racing tune, then the power is about right. though the ford racing tune usually comes in much richer. your power graph should be smoother though, there is that big dip in the middle.

[05mustang_TT_charged]

i would get the a/f ratio checked because 12 to 1 is a little leaner than you want, i started with the Kenne Bell tune and had 412rwhp and 422rwtq on a Mustang Dyno, we did a custom tune and 3 pulls later had 466 rwhp and 502 rwtq at 18* timeing and 11.3 to 1 a/f, and that was on 9 psi.

[Grabber523]

This is what a screw dyno should look like at 8 lb... the torque curve (if you can call it a curve) should be pretty smooth, no big hiccups. 8lb, IC, stock plugs, KB canned tune optimized for 24 degrees of timing, 92 octane, 11.2 A/F. 419 is pretty low for that boost level.

[onederful100]

thats a very nice graph. i will bring the car back to work on the race tune more. i'm waiting for more parts for the fuel pressure gauge so didnt want to leave the car in the shop while i'm waiting. so when i get a few more small stuff together, will go back and fine tune.

[MaverickMLFD371]

here's my whipple dyno graph....