the reason I ask this is because I just had a customer that had a crate motor and had a big check list of stuff that he had to have a Certified mechanic check off on so the warranty was valid. what really got me was the motor was already Dyno tested and the stuff on the checklist was stuff you needed the oil pan off for? It was quite ridiculous and looked like a big loophole for the manufacturer. Today's modern mechanic is a far cry from yesterday's. And to give that a little validity my son is a full Certified mechanic and does not have a timing light and cannot tune a carburetor. These things had stopped being used before he was born ! LOL..