mikestang63
SN Certified Technician
Jeff, those are great numbers!!! Your car has to be one of the top ten foxes I've seen.... Amazing build.
So today we embarked on a journey. Between trimming brackets and not having the right couplers etc we finally got it all together . Step up ratio from the s trim to the ysi is the same . So it spinning the same rpm managed to make 627hp at the tire . Made 581 before with super high inlet temps . This is all on straight pump gas with super conservative timing . Don't mind the worm clamp and mis matched crap going on . I dropped the ball on having the bigger clamps and couplers but we managed to make it work![]()
Next time we revisit this we'll be going from a 6.7 lower to a 8 inch lower .
Quick question- I'm looking at your TFI and it appears to be way over.. is your timing locked out ..what's it set at?

