The reason everyone runs chev is it costs about a third of what a mopar build does. Every one has parts for them to. I race boats an am the only mopar in the field. The class I run we are limited to 412 cubes. Have to run caste heads an a stock porting angle. W2 heads are a good head a flow good especialy with a little help. The porting angle on a crysler is 18 compared to 23 which is a big plus. There is no dought mopar is a better engine. The only disdvantage I have found is mopars wiegh about 100 pounds more an you have to modify the oiling system so dam much for substained high rpm.