thanks again tech. so i should expect a pretty good bump in hp from the 225 i have just by switching stock heads right? i will probably have heads gone over before i put them on, butt pretty much stock valves and no porting. i aready have an electronic ing. for it, and depending on money, as long as i have the intake and heads off, maybe a mild edelbrock cam,carb,and intake combo.with just doing that easy stuff do you have a ball park for hp? just curious, and it sounds like you would know. thanks again to everybody.