Andy's combo is almost the same as mine. I have an early set of the 360-2 230s & the chambers checked out to 65 cc. At zero deck,.039 cometics and JE flat tops my compression worked out to 11.4. My cam is much milder 260/266 @.50 with a .420 lobe and 1.6 T&d rockers. I thought Andy's combo would work a lot better with a cam similar to your contest engine due to his low comp. Nice work on the intake & valve job. My heads were rough in the valve seat area also & Bob George cleaned them up for me. My combo went 9.87 136 first time out on pump with no tuning. We were working on the suspension. Keep at it Andy, I'm sure Brett will get that cool little valiant flying. Randy