250 timing question

[Chevy nutcase]

Originally Posted by bhap

I'd pull #1 plug, find TDC (confirm with either valve cover off - both valves closed or finger in #1 spark plug hole to feel puff of air on compression), reset the distributor and wires and see where your timing light falls. The way you are doing it obviously worked, but assumes it was setup correctly the last time..

I did as you said. Physically turned the motor to #1 tdc, confirmed through spark plug hole and the mark was on zero but now the rotor was well past #1 on the cap and was a third of the way to #5. I dont know how that happened but I pulled the distributor and moved it back 2 or 3 teeth to #1 and it runs beautifully. The timing mark on the crank is high on the stationary indicator which I think is a few degrees advanced but I hear that's where these motors like to run. I did get a tiny carb pop but that may have been it clearing its throat as I had all the bolt on accessories off so I could clean and paint the block. I'll give it a test run tonight or tomorrow and see how it likes the new electrical system. Thank you