Thanks for that info. I tried all of that and i think the timing issues are OK now. I am beginning to think my idle issues is with the carburetor. can't get it to idle under 900 RPM.
I am using the original style autolite 4100 series maybe need to upgrade? i tried to adjust the mixer screw by turning them all the way in then out 1 1/2 turn but had to turn out 2 full
turns just to get to idle at 900 RPM.
Could be as simple as misadjusted throttle linkage too? With the blades hanging open just a tad it makes idle really hard to set. Try 'forcing' the blades more closed (gently) and see if it improves. Verify that the idle speed screw's not holding it open too, obviously.
Thanks guys for all help. It was a carburetor issue. I used a loaner carburetor to swap out and took care of the problem. Now I have time to take a closer look at my carburetor to figure out the problem.