I didnt put the engine in the car wich is why i suspect it is stock. all i have seen of the internals is the rockers and they seem stock. also the torker came on the engine when i bought it. the thing is i wish to buy an intake and carp that i can also use when i find myself a new motor for it (since i am not happy at all with the current motor) would the rpm gove me good throttle response on a motor like this. currently when i press the throttle slightly it really just wants to bog and die. i have to give it quite a push to be allright.