Spark plugs

Checked valves during leak down test. 37 at 2300


37 isn't bad. That should not have turned the exhaust red though.

Usually, when you see the EGT high enough to turn the headers red without a load on it, you either have the timing too far retarded or it is dead rich, or both.

It may have been that you are pretty rich and 37 wasn't enough total to get everything burned (while not under load) so combustion was still happening when the exhaust valve opens. That makes the headers turn red.

I've seen guys who data log EGT get sideways because the EGT is high so they pull timing and fatten it up and the EGT goes even higher. That happens so often on alcohol it's not funny. The correction follows a curve where the EGT starts dropping, will flatten out and the start heading back up as you ADD timing and REMOVE fuel. Once you get the EGT heading back up then you are getting the tune close.

EGT response is relatively slow, so you need a large sample across a fairly long time. I generally only looked at the point from high gear on durning the run.

I mention all this because I'm bored. Worthless information, but I typed it out anyway. That proves I'm bored. I hope you get something out of it.