Pro Flo 4 Timing

TurboGLH said
416ci, CNC SM heads, mechanical roller 242/242 @ .050, .571 lift.

Also has 5 deg of vacuum advance.

View attachment 1715727629

thanks, that is good info. in my case:

426ci, 12.5:1 comp, ported Edelbrock performer heads with 2.08 intake valves, 1.6 ratio rockers, SB HYD RLR CAM 238/242 -110o LSA. run on 91 octane pump gas. 1150RPM idle. driven at 6500 ft above sea level.

Theses are the settings I have now, plus 5 degrees vacuum advance: