Well that’s the best I can do on this set of heads.

toolmanmike said

And here I always thought a bigger valve would be a good thing! :lol:

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A lot of things go into running that bigger valve. I gotta learn to ask more questions before I start a job. I about guarantee you this set of 2.055 valve heads will do better but even on these I’m limited to a 4.120 gasket size. So we shall see