Well I couldn't wait till I bought a timing light so I looked at my distributor and saw the adjustment screw. Read in the Chilton manual on how to adjust the initial timing. So I loosen that screw and turn the distributor all the way clockwise. Now I've read on the forums that there are 2 adjustment screws? But all i saw was one. Before I adjusted it, it was on the far side of counterclockwise turning so me turning it all the way clockwise was a big adjustment. As I turned the dist. the idle climbed real high. I had my idle screw on the TB way out because I had trouble with stalling. So as I adjusted the dist. I had to screw in the TB idle adjustment. Idleing is real smooth. Took it out for a drive and drove real good. Had more low end "oomph". I have always used 89 octane gas and sometimes 93 octane hence the reason for wanting to adjust it. But since it seems to have been a huge adjustment i'm a little worried about pinging. So since i advanced it as far is it would go? what is my initial timing at? Should I be worried?