Originally Posted by Lilja

Well mine was more around 250ish, cause thats what my OS engines have been running at with the same tempgun. But yea maybe youre right the Nova engines heads are more open where the plug sits so it might be measuring against the coil.
And now that I think about it the times its stalled have been when Ive let go of the throttle so the idle was probably a bit low, I did increase that though but I think I overdid it alittle.
Guess Ill put a new 6 plug in it and see if I can lean it on both ends and then maybe decrease the idle just alittle from my previous adjustment and see where that takes me.

I dont have the car inhere so I cant see what the needles are like, but I know the lowspeed is probably a millimeter or so in from flush.