The STS CNC ported version of the B1BS flows 348 cfm, and costs $2,475.15 with springs and Ti retainers. That is the cost for one cylinder head.
Roughly twice as much as a TF270 with comparable hardware, and it flows about the same...... but doesn't require the offset rockers or special headers.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
