crazypj said:
It would be 45~47 full advance
I would mark rotor and use timing light
thanks guys! Dodged a bullet with that one. We have been shopping for a digital timing light. Some have 90 degrees advance and some have 60 degrees. I watched a video on one of the digital lights timing a small block Chevy and it had 9 degrees advance and at speed ended up 20 something. The common sense bell started ringing in my head. Telling me that 45 must be full advance.
After installing our Dyna S we statically timed Lucky with a light at TDC. She still had a half of tank of 93 octane. You could tell dramatically without the advance she was sluggish. She did not want to rev to 10k like she'd did with the timing advanced.
Now when we were running our points and 93 octane we learned how to advance our timing be ear. We retarded the timing at idle until we died. Then we advanced our timing until the rpms picked up significantly and backed it off some. She ran great.
Now with the ignition system dialed in with iridium plugs, dyna S, dyna 5ohm coil, and 8mm Taylor plug wires with non resister caps... It was time to buy a good digital timing light. We will see if Crazypj is right that if we have a reversion problem it is because our intakes are too short. We extended our velocity stacks to a 120mm and put our filters over our stacks. Took her for a ride then checked the plugs...way rich. That was to be expected because we ran no filters on the dyno.
When I was young I learned a very important lesson on the golf course. This guy sandbagged me wearing tennis shoes, drinking a tall boy from his bag, and with an $80 set of clubs. He smiled and took my money. He said, "it is not the clubs that wins the game but the swing." That applies to tuning an engine for speed.
Thanks for your help guy!!!! PJ we just got another head from flea bay we were going to bandsaw to show my son how the exhaust port is slamming on the brakes. One of the combustion chambers looked like mice had been nibbling.