HV oil pump is no good with your stock pan, you're going to run the pan dry unless you at least add a crank scraper.... if you're going to add a cam to that motor, you should probably match to your intake manifold.... the RPM manifolds will really slug your engine if you dont have a cam that matches it..... get the matching edelbrock cam... while you've got it apart, replace the timing set, it never hurts to, and you might as well, since its a pain to do it again later... use a chain set... DO NOT USE A GEAR DRIVE ..... should get your motor closer to the right direction...