Swifter, sorry I was not around to "chat" with you. You have seen my combination run. Many may not have. So....4" stroke 4.150 bore R-3 block. CP pistons, Eagle rods, roller, cam .770 lift, 278/284 T & D rockers/push rod oiling on Brodix Heads, Super Victor Intake, 1050 carb, MSD, crank...