[JAM1775]

I have a 351W crate (385) motor which dynoed numerous times at a consistent 337 rwhp (405 flywheel) @ 5800 rpm and 336 rwtq at 4300 rpm. I swapped the Victor for a Weiand stealth before the dyno which explains the stronger mid range than advertised. I am running a 650 race demon. This past winter I ported/milled the crate GT40X heads, port matched the intake and added a 3/4" spacer. With the mods the motor dynoed at 378rwhp @6000 rpm and 360rwtq@4600rpm. The second dyno sessions also reflected the motor producing 330rwtq@3000 and 330rwtq at 5600 rpm. I was very satisfied with the width and flatness of that curve . Roscoe..if you feel you have more power potential try calling AFR and advise them of your cam and motor specs. They may better advise you than BG.