OK, seems to be a bit more of an issue than I thought... Guess I'm going to put in a 190° or 200° thermostat. Got a very minor leak round the thermostat housing anyway, good time to yank it off
Thanks for the input, I may be a slow learner, but I'm getting there (I hope )
Greetings from across the lake
(where gas is $6,50 a gallon, so I do want complete burn )