couple of quick thermostat questions, guys. is it a good idea to have a 160* stat even with a stock chip? (i don't know for sure what chip is in mine, i was told that buick installed a performance chip in it when they gave the car to the first owner, elliot forbes robinson, a nascar driver i guess) it seems to run a little warm in traffic, and the summers here can be brutle! also, is it worth it to order a stainless housing while i'm at it? i'm sure that my housing is fine as the motor was rebuilt 1500 miles ago. i've heard different opinions on the whole temp thing, so i want to do the best thing. THANKS DUDES!!!