I might as well step up to a new, better head. I am currently running MP but am looking at the Edelbrock or Stage V. How tight can I run the valve to guide? What type of seals?


If the MP heads have the original guides, I would start looking there. They were over-sized and soft from the factory. I had a new Hemi build, with new alum. MP heads that was smoking. It was the guides!
I sent the heads to Modern Cylinder heads, and the problem was solved.



Mark