The heart of the matter: Don Ferguson took a late (&rsquo;49-&rsquo;53) flathead block and built Scott a half-inch stroker with a Scat crank, Scat H-beam rods, and Bullet blower cam. The Ardun overhead-valve conversion is stuffed full of air by the S.Co.T. blower, a big huffer built for Cad and Olds engines.