I had an approx. 600h.p. 406 sbc in a vega, 14x32`s w/ a 4:10 rear end. worked out about 3:73 or so if I remember. Drove it to work, 28 miles each way, at least once a week. Got a kick out of embarrising porches and corvettes ! With a motor of ur size, I would go 3:55`s for the street, would still haul *** on the dragstrip.