In PGJ, we have the 500 cu in limit. To be competetive, you probably need to make better than 1250 HP. At 500 cu in., to make that much power, it would be in the 8500 RPM up range, and that's a little on the low side. Our Olds RPM is quite a bit higher than that. A guy from Houston that used to run PGJ spent an unbelievable amount of money on a Pontiac to make it run without the gearbox and never ran lower than mid 8.40's. I did the pump in the boat and it had a pretty nice keel in it. I think he was turning the motor about 7600 with a C- impeller. That may not be exactly right, but close.