Blue flame 235 engines did not have near that much timing:
straight up at low idle and 28 crank degrees in the mechanical running on [censored] for gasoline,
Most can run 5 degrees initial lead on regular gas though, more on premium.
Run them to they start to pre-ignite and back it down two degrees or so and you are golden.

Last edited by sstock; 02/03/2019 6:29 AM.
1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration