Tuning For Detonation

He still needs to get the engine temp down. He’s doing this on 87 octane. Once he gets the temp down and a better timing curve he will be fine.

We drove it to town and back. It runs better, liking the more initial. That said, Kitty says the rattle is about the same and I think I know why. It's the heat. I cannot MAKE it rattle ONE IOTA until it gets some temp on the gauge. When cold, now with more initial, it pops off almost without hittin the key. I mean it's READY. But when we went into the post office and it sat there heat soaking, it still had long crank time with the throttle open a hair....and the temp gauge was almost at 3/4. As soon as it busts off it starts cooling right down. I think the high flow thermostat is going to help a good bit. It did on my truck. It was running in the half way range and when I put in a high flow thermostat now it barely comes off the cold line.....and it's right. I've checked it with the heat gun. I'll get on top of it. I may file out the zero holes on the limiter plate and get them to 6 degrees and see what's goin on then. Obviously, for "whatever" reason, the slots are different for this distributor. Whether it's because it's a slant six distributor and maybe a little different, I don't know. I still have several tuning options left, so we'll get it. I'm pretty confident. If nothing else, now I have some room to retard the initial and that will get it out for sure. But I believe the cooler, high flow thermostat will pretty much solve it. I am going to try that first and report back.