After valve adjustment stall issues.

.013/ 023 on a warmed up engine, I don't care what the specs are; I never had a slant that ran at .010/.020; mind you I've only had lemmee think ................... five, lol.....
I set them at TDC compression, one atta time. All except one were stock cams.

Wow, thats crazy. Mine takes kind to 10/20 when hot. I run one of the old three-core-plug forged crank jobs. I guess gapping them a little larger might be worth a try given the differential expansion of the metals.