I hear ya Greg. I started thinking about b1's too late in the game. I already had my pistons. I have a friend of mine trying to sell me his -1s now. For this year I'll run it it sits. My ez's flowed 345 when Nick did them and this year I upgraded to pro flow valves so I might have gained a tiny bit. Anyways the short block is in good shape. BMP block, Molnar crank and rods and racetek Pistons. .005 in the hole with a small dome. Makes 557 inches.