Actually my brother is going to build a complete new eng using a RB block as the 499 in it now is a low deck B block. He wants to build a much stronger eng with the RB block and Victor heads as he has RPM heads on the 499 in it now. And then maybe use the Indy box style crossram.

As far as I know any 2 four intake is legal for NSS acording to the way the rules read I believe ? Ron