You really wouldn’t have liked some of the old Cam Dynamic rollers with the recommended lash of .035.

Even the old stock Chevy Duntov cam was .030(That’s why it’s referred to as the 30-30 cam).

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads