Steer clear of any properly race tuned motors for road use. A, it will need refreshing every 1k at a cost of around 7k every time B, it'll be useless without the comPlex electronics to run it C, it'll be useless for road use anyway, all power at the top. If anything, he wants cams & a lightly settled top end at the most, bottom end wants to be standard for road use. A superstock motor is his best bet.