Hey Mike - If there was a 'perfect answer' at a perfect time - your 2,600lb.- 2,700lb. cylinder head answer made the mark ! Gave me the best "I can't believe it" laugh I've had this Millineum ! I'm getting a '69 Open Chamber Head to build for my '81 Eagle Kremlin . Open Chamber Cylinder Heads were the Rage back just before Gremlins' made their debut. The Chevy Street Racers would yak about The 427 Open Chamber Heads - 'KING". Nice thing is that for TURBOcharging - "They RULE"!. Rambler made these units from 1967-'70 on their 199/232 Platform. I bought a '77 Grem parts car. Using the 1/4 panel glass & insert to 'Retro' Grem with . Grille is perfect . Going to lose the 'gingerbread' quad headlites & chrome trim back to what these fenders & front lines were designed for. What is the Winter News on your Gremmer ? .............bt HH-7X@xxxx