Used one of the summit coupons and picked up a set of the promaxx heads for like $957. Can't beat that deal. I'm going to put them on my new 383 and see if I can get the roadster to run 5.90s.

33 Plymouth Roadster - 383 - 5.90 1/8th 9.58 1/4
68 Dart - 340
66 Belvedere - 400

Windy Hollow Garage - https://www.youtube.com/@windyhollowgarage