Hemirunner
Well-Known Member
A 2.76 would be good for 328 MPH in my hemi bird assuming 7500rpm and a tail wind.Kern Dog is right, a 2.76 diff is good for at least 160. My uncle was once a VT State Trooper; he had friends. One night, we went out on I-89 with a couple ex-cruisers. My '74 Polara reached 152. His '73 Sport Fury hit 161.