Big difference, dude. Small blocks will get their high cubes by stroking longer, whereas big blocks have bigger bores. This forces small blocks to work harder to achieve similar HP while never really reaching the torque numbers of the big blocks. And that torque is your launch. If you can't launch, you can't win. Had AMC had the ability to finance the creation of their own Big Block, who knows how badly we'd have embaraased the big three. But as history stands, all we could do was get close. John -----Original Message----- From: ndaracer1975 [mailto:ndaracer1975@xxxx] Cubes are cubes so I don't see the relevance of the block that carry's em.