The snow started melting Sunday so I decided in the afternoon to adjust the carb a little.

Carter AFB 625. I started with 400 primary with 7037 rods, silver springs and 395 secondaries.

I changed to 401 primary with 7342 rods, orange springs and 398 secondaries.

It seemed to run better. I broke traction on the shift to 2nd (auto). Felt like it had more power , but from a dead stop I punch it and it falls on its face. I let off and it starts to move and then I punch it and it launches.

Should I go back to the 7037 rods? silver springs? or both?

The accelerator pump is in the hole closest to the carb.

 

I advanced the timing a few degrees ( 12? I didn't put the light on it ) and it takes off better now. How much advance is too much? Does it matter as long as it doesn't detonate and runs cool? I still have the vac advance plugged off.

With the initial timing set at 10 and the vac plugged I have 34 degrees total. With vac it is around 40.

 

As long as your car responds good to your timing, your fine. I currently have 16 initial (aggressive) with 24 mechanical, so a total of 40 degrees. It takes some trial and error or a good dyno tune to find your car's "sweet spot". You might even advance your intial a little bit while your vac-advanced is UNplugged.

 

Thanks, I will try a little more advance this weakend and see what it does.