Vacuum gauge, albeit from HF, it seems to be correct. Vac advance turns with mild acceleration then goes back to original position when vacuum (on gauge) begins to decrease as throttle increases.
Timing was set to 10°BTDC, if I remember correctly. Yes, with timing light. If timing were off wouldn’t I get backfiring through carb? Everything seems perfect until just before 1500rpm. Above that, it’s bad.
