First hit on the dyno

roccodart440 said
Performer RPM, max hand port with 2.20 intake valve. 345cfm on intake.

Mine made 575tq @ 4500, 602hp@5,900

I left a lot on the table with the cam and it wants more carb.

I would be happy to be at your levels I'm honestly a little worried about pushing the block too far getting close to 650. It's more than I had wanted really.