Not sure what the issue is but rebuilt 340 is overheating on run stand. Fired up today(2nd time on stand) to dial in timing and it's overheating to approx 110-120*C.
1st fireup was no stat. 2nd fireup I installed 180 stat. Not 100% sure on what timing is at yet, but approx 30* at approx 2300 rpm with va and carb both plugged.
Think it's timing??
Video of 2nd start