Would this be ok with the 700R4 that Van's is setting up? He'd prefer to see me stay in the 400 to 425 horse level.. Maybe just backing off to a vacuum secondary 650 would help with the driveability and make the OD trans live a bit longer???? Got to stick with the mechanical rollers, such cheap horsepower, all things considered.... Gonna go look at the VooDoo specs. I'm sure you (Erik) got a line on just the heads I need?????