I heard you answer me before and a few posts back I was just trying to get everybody back on track sometimes things get a little sideways. And now that you bring up spark plug heat range again I had extremely hot plugs last year and when I took my head's in this winter, the Machine Shop was like those are way too hot we're going to give you some colder plugs to use. They gave me autolite 3934's . They are side Gap plugs that are gapped at 45 right now with the New MSD ignition. It's hard to say I can tell any difference because of all the changes I've made. I seem to be running at about 33-34 all in for timing. Last year I was running about 34 all in timing and I was getting a little pre ignition which I could tell on the top of the Pistons when I took the heads off it wasn't terrible or anything but it was noticeable. I was kind of thinking it was the hot plugs. At this point I just need to get a lot of consistent passes so I can make small changes and see what makes the difference timing, plugs, jets, and carburetor that kind of stuff. For the rest of the season I think I'm not gonna try and Chase 1 or 2 tenths. if that's all I can get out of the car, I'd rather dial it back a couple tenths and just be consistent and not break anything.
