[jamaio]

I did some more testing last Saturday. I found the engine will lose power under load at 2200 rpms and backfire through the carb. After checking several things I retarded the timing from 28° max advance to 18° max advance. On my test drive I could get to 2700 rpms under load with no loss of power and no backfire from the carb.
I pulled my distributor and sent it to FSI, Shawn will limit my max advance to 18°, this will give me some flexibility, I can still increase my max advance and keep my base timing in a good range. With the stock setting of 25° max advance, if I wanted to set it to 18° max, my base timing would be -7°.
My distributor will be back sometime next week, I will post the results when I get in installed.
Next I will use an O2 sensor to set my carb up.