Higher value 69 Chevelle COPO 427 or L-78/L89?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: mhassett</div><div class="ubbcode-body">I've been waiting to hear this comment. The L-78 has the same cam as the '66 427-425HP Corvette. The 375HP is Under-Rated, plus the L-89 is lighter. I think it would be a close race. Mark </div></div>I hate to say it but you are so wrong. Having had one of each back in the day, although the L78 is a strong engine it does not measure up to the427-425. The 427 was a beast compared to the 396.