High RPM when in time 360FE
Backstory, just replaced the timing gear with a heavy duty double roller and chain along with pertronix ignition in a stock 1970s distributer. Along with this I did replace other components not related to timing so they shouldn’t affect it.
When in park and the vacuum advance disconnected and plugged I am getting ~1280RPM at 11BTDC at running temp. Plugs are gapped for standard ignition but not for pertronix (not sure if it’ll make a big difference). Im also getting ~130PSI from the cylinders and not hearing any vacuum leaks (could be wrong) and I’m reading that with standard timing I should be closer to 900-1000rpm. It has great acceleration and it’s responsive but I want to dial in for fuel economy and horsepower from the factory specs. Is this an issue and if so what can I do to fix it?