RE: 4-tec really hitting 70?
Ferrarif 501F1 .... a Fusion was clocked at 75mph in a review in car action a couple years ago by Steve Pond, that is 4 mph faster than your 4 tech . So the 4-tec does not kick the Fusions but. But I do like your idea about putting a RB .23 in a 4-tech that would challenge a Fusion.