440 problems/quenching?/advice needed

@dubob

I am going to change the cam to a mechanical type mopar cam. Probably going to go with the .488 MP purple shaft based on you guys' opinion.

When I got this motor, it had 906 heads on it with adjustable rockers, which are open chamber. It ran 11's in a pickup with that combo on pump gas. I think when I put the 516's on it, it completely jacked up the compression as well as stiffening up the valve train with factory style rockers. Thus the reason it runs like it does...

I think what I will do is change the cam to a smaller lift with open chamber heads to cut back the CR and allow me to run factory rockers.

What do you guys think? I just want a good running motor. No interest in taking it down the drag strip.