Good point about the timing, I forgot to mention that and it is a major player in exhaust temps.
I'm running 10 deg advanced base timing and about 30 total. Before, with the high compression, I ran about 6 or 8 base. Same harmonic balancer as before.
When I was running rich with 12.5 to 1 exhaust temps were lower. Running rich or lean with the new 9.8 to 1 exhaust temps are higher, which just seems "weird".
I think I will introduce more base timing to see what happens, good tip. Of course being careful not to advance TO much and the need to re-confirm the timing marks.
Same intake as before. I used a hand held "Heat Gun" and recorded 900 deg's, but I'm not sure how reliable the gun is. No thermocouples to calibrate, just a melted tennis shoe BEFORE I finished insulating the fire wall.
