Checked my head clearance the other day on a mac 67 and was .020 (used plastigage and micrometer) CMDI recommends .010-.012
Right now my plugs look good (slightly pulled out and good color) and running fine. What would I potentially gain by moving to recommended head clearance? I dont have time to run this weekend or would test but curious if there are any proven answers?
thanks,
Brian
Right now my plugs look good (slightly pulled out and good color) and running fine. What would I potentially gain by moving to recommended head clearance? I dont have time to run this weekend or would test but curious if there are any proven answers?
thanks,
Brian