Quote:
Originally Posted by Mike Taylor 3601
I would make sure spark plug isn't blocked or hit by dome,if so and piston has enough material I would cut slot/notch in dome for spark plug so it isn't blocked. Not only will this keep from smashing gap together,but will be able to run less timing.
Mike Taylor 3601
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Thanks Mike, I'm putting this closed chamber piston in an open chamber head so I think the chances of the plug interference are slim. I'm hoping a fire slot isn't necessary because I think the dome height is low enough. Grumps old book says the dome radius should be 1/4 inch, so I guess I have more to do.