Ump stock car or pure street?
I recently purchased a stock car that was previously raced at crown point speedway before it closed. The car was ran in the pure street class, and has a 400 sbc. Id like to run it at shady hill next season but i'm unsure wether to swap engines to run pure street or if the 375 hp that the 400 currently makes is enough to run with the ump stock cars. The track rule states that I cannot run the 400 in pure streets so my options would have to be to bump up a class, which would be the ump stock cars or run a different engine. Im new to dirt track racing and would like to get some opinions on how my car would fare with in the higher class.