In my honest opinion (thread miner) i think none of the builders , will build you a motor to their full potential , i mean the custom domes w the extensive research , compresion and port timings to acheve what their motors are making in power or to get it to run as hard or close to it ... i think everyone is just a customer and they do a ok job to were it runs good or better then others , but to actually build you a motor same size (stroke , bore etc etc ) i doubt it , just an opinion while being bored