tell him to use them as door stops...

buy a set of stealth aluminum heads from 440source.com....or even edelbrock rpms...

by the time you replace the valves..guides ...spring and retainers and pay for the machine work.....you will spend enough to buy the stealth heads at $899.

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)