Not to highjack the thread, but I'm hoping this question will help the OP in regards to tuning.
Here are my specs as stated earlier.
My timing is set around 14 degrees adv. initial. And it seems to run the best.
I do have vacuum advance hooked up.
Low and Mid RPM response is phenomenal. I do have a audible ping at High RPM (around 4500+) even with 91 octane. I live at 4500 ft above sea level. I'm running a stock VA distributor. I'm thinking the total advance is within range. My fuel pump is a Carter performance one [120 gph, 6.9-8.1 psi]. So I know its not that.
So I'm thinking I should put the initial back down to 10 degrees. Any suggestions? Or should I invest in a performance distributor?
