WOT=wide open throttleDistribiter was after market , no extra springs . I am new at this, what is WOT ? All of this is in efforts to cure running hot problem. Engine has been rebuilt , new water pump, new radiater with electric fan and shroud, also added two pusher fans. Did adjust timing from 8 BTDC to 14. It helped problem but still runs 220-230 just cruising but if I push it any at all goes to 240 plus. Was told it could be tming issue, carb running to rich or lean, or engine was rebuilt with too close tolerances and just needs broken in. It starts hard, turns over easy nut pops and back fires trying to start when up to temp . Thanks for any help. JR.