i am not at all certain of what you just said, but i think you are saying that Adam told you that this motor is to run at 250+, and that is OK/Normal? BUT will cool down "some" after break in?

I find that VERY hard to believe. I have been in pit lane when Adam has brought his car in after a main, and his came in at 190, and was telling his pit guy that it seemed to be lean bogging a bit.

I dont know. Just seems odd to me. I will stick with the temps, mine seems to be running good at. That is normally about 180-190, occasionally hitting the 202 mark, if running low on fuel. That is just MY experience.

As for glow plugs, the GRP 6 is just too cold. The GRP 4 is a good one, and the OS P4 has been working well for me. I have yet to try the P3, because I have not had any issues with the P4 yet.

I guess, to each thier own. I dont know that anyone is "wrong". They are saying what is working for them. If someone else has the hot ticket, and you feel safe with that, then I say "run it"! Let us know how it all works out.