Originally Posted by 440Jim

What was the RPM for peak HP of your current setup?


So peak hp was at 6600 rpm. It was very flat from 6300 to 6600, but they did not run the tests past 6600 rpm. Peak torque was at 5500 rpm.

I will be digesting all the info. Will drop the car off to pull the motor at the end of summer or early fall so I have some time to think about it. I will be at Brodix in a few weeks, so I will have a conversation with them about the B1 heads.

Can I buy bigger off the shelf headers that will fit B1 heads in a stockish 67 B body or are we talking a custom built set?

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......