Ported, cylinders honed, new pistons etc, flywheel substantially lightened. 60 carbs with .62 jets. Garrett turbo. Just kiddin. Block stuffed. You or anyone know if velocity stacks worth foolin with? Oh 1.83 ratio. Prop is a Ron hill 11.25x16 semi signature. That one and the signature 18p are AWESOME propellers. rocket fans is what I call them