To answer your question, the Speedway 915-15002 is a good baseline cam. This is the tight lash faster ramp design. 531/537 - 248/256 @106. I've ran all but one of this series and they are a good value. If you have the funds put a set of 1.6 rockers on, this cam loves them. Get a new set of springs to match the cam. Its important to run a zinc breakin additive and continue with a racing oil with zinc afterward.
Good luck.