Quote:
Originally Posted by cpiefer06
I am kind of curious about the 275 w/ 496 only doing 63.5??? I have an 272 with 454mpi and before lab prop ran about 64 and with lab prop get 67.5 or so all gps. I was really thinking I had to have at least a 496 but it seems maybe the 454 is just fine. 3 inches shouldnt out do the extra ponies should it? Have to say I am already thinking of adding a whipple charger to it just for fun. I have never been able to leave things alone always have to add extras, especially the Harley.
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are you running the 454mpi or 454 mag?
