will this cam fit it 318

A completely stock 318 would more than likely out perform a 318 with that cam.

A big cam only will not make more horsepower... there is more to it than that. I did the big cam deal one time and it only took one time to understand the mistake I made. I have learned however a lot since those days.

There is a difference in just sounding good and performing good.

If you want real performance from your 318 need to jump into these two threads and absorb the info like a sponge.

http://www.forabodiesonly.com/mopar/showthread.php?t=28974

http://www.forabodiesonly.com/mopar/showthread.php?t=19556