i'm running a 360 in my 74 f250 i mostly use it for in a compitition street stock truck pull. however i still drive it on ocasion on the road. now i'm running a crane powermax cam which is a 204*/216* .501"/.533",dynomax headers and a holley 500 cfm two barrel (for class rules), on the stock two barrel intake (i understand that's a power robber). i have the intake off right now because you wonderful folks pointed me toward a faulty intake gasket. i'm running the stock heads for the truck (i've already locked up the shop or i'd have the #s for ya but i'd like to know if anyone could direct me to a better flowing set of heads they must be stock cast pieces for my class and what the numbers would be for me to look for. i appreciate all the help. and thank you to the folks that helped me to find my gasket problem.