so heres the thing. i use to have a 160 thermostat in an my car ran way to cold. i switched it to a 180 and it made a bug difference in everyway. i recently had a bad radiator that would leak all over the place and alot. it seemed like when it ran a lil hot (maybe 190-200) that it ran even better an had more power, maybe because of more effecient burn in the cylinders? so now i wonder, do i put the stock temp thermostat in which is a 195...or should i mess with different heat range plugs? with the 195 in i shouldnt have a problem running hot since i have a new radiator right? i also have a electric fan ill be putting is sometime soon. keep in mind my car is carb'd but is a 1990 motor and id like to be able to spray without changing plugs. what you guys think?!!?