tHANK YOU FOR THE REPLY, GOOD ADVICE. HOW DO I DETERMINE PUSHROD LENGTH AND HOW DO I BE SURE THAT MY DECK CLEARENCE WILL BE ENOUGH? DO I JUST GET 6 IN RODS AND PISTONS MADE FOR THEM AND THE CLEARNCE SHOULD BE OK?ILL HAVE MANY MORE AS THE BUILD GOES ON, PROBABLY REAL BASIC QUESTIONS, HOPE YOU ALL DONT MIND, BUT THIS IS MY FIRST.