well, the 351c used to be THE choice to build HP...can make killer HP with them.. thats why they were in pro stock and not the 351w. the heads were WAY better than the 351w..but since they stopped making them, there isnt alot of parts out there..
FWIW, the yates heads are basically a 351c head designed to work on a 351w block... which is what they run in NASCAR
