Blueprint 408 cooling system questions.

At some point in the thread he did. 200 on the water neck I believe. So much going on in here. Total timing not coming in until 4000+ rpm...a copper/brass radiator, no shroud, carb issues, dieseling...on and on. Would like to help him get it figured out, if he gets back on.

4000 is really high. Either he doesn't have enough initial or he needs to limit total. If he needs more initial, that right there could solve the whole problem. Oh well.