Thanks Ahy,

You are a 100% right..
So it is stock location fan, but the champion radiator doesn't have a shroud on it, and previously my old 440 cooled fine without, I plan on adding it going forward..

I will check the plugs and see if they appear leaned out.. I will also bump up initial.

My concern is the 440source pump, I got it before I read some grumbling on here, thought it might be the culprit and thought maybe I should toss it and put the old iron one on from my 440 instead of using it as a paperweight:)

Do you think the lack of a shrould and tuning issues could be the more likely culprit?

Mikey