1968 '340' Barracuda vs 1968 '383' Road Runner

I question the difference between the Hemi 12.5:1 w/holleys and one 10.5:1 with carters and both being 425 hp.


Any accounts of the HP ratings being inflated or deflated have been proven to be false through the years. Tons of magazine articles on the subject. All of them were very close to what they were adversited.