Posted by David on Tuesday, October 01, 2002 at 11:57PM :
In Reply to: CR and heads posted by casebro on Sunday, September 29, 2002 at 10:43PM :
The spark plug is in the highest portion of the head and does not need to be installed but you should have the cam that you plan to run installed. A higher lift cam means less valve clearance. Never assume your head has not been milled previously, check the clearance before you use someone else's measurement.