Cam with a little more duration. Depending on gear choice the T/A "tight" 10" is a nice piece. I think the life of the 741 would depend on your traction situation and how hard you are on it. Others are right saying it will be the first to go, but I had one for a while behind my 2 ton car with a stroker and it lasted, with street tires. Jusy my I'm sure others on here can help alot more than me though.