[cableguy0]

Anything with an hei distributor should be .045 plug gap. .035 is for points which havent been used since the mid 70's in gm stuff. Buying a decent set of wires is a good idea. The price difference is the quality of the wires. I would reccomend a set of taylor wires for about 60 bucks. They will last 2 or 3 times longer than those pos belden wires could think of lasting. The better wires have less resistance and better insulation. Less resistance means more spark gets to the plug and the better insulation stops the spark from leaking through the wires causing misfires or running problems. Generally a 195 thermostat is what should be used. Thats what it came with. The engine coming up to proper temp is neccessary to burn the moisture out of the crankcase. Engines that dont come to temp tend to sludge up especially when only driven on short trips.