better to get a 160 or 180 t-stat for my bonnieville? also whats the part number for a fuel sending unit?

160 with a ton of mods, I mean a ton. 180 for a stock or modded car.

Lux, I don't remember you modding much at all yet. Go 180. The car might see the temp not getting high enough and set a check engine code with a 160.

On that part number please give gmpartsdirect.com a try.

Drilled 180. Either two 1/8" holes or four 1/16" holes.

Ok today i went to the local autostore bought a fuel filter pcv valve oil fiter and 180 T-stat along with fuel injector cleaner. so i installed the fuel filter extremely easy and the pcv was also very easy... I dont notice much my engine seems to be idlign alot better but no performance gains sofar.... Tommorow i will install 180 and oil filter. I need to drill the thermostat where ? Also there are no gaskets or o rings where my pcv valve is located is that a bad thing or is it normal?

luxuries, im gonna try those (the pcv and the fuel filter) on the 94 and see if that helps my engine idle better. car runs fine, just idles rough

If you bought a 180 t-stat, I dont know if you have to drill it. I thought they drilled 195'* to get 180???? Someone correct me if I am wrong???

Even with a 180 you can get warm in the summer... I can see 220 pulling off the highway..but there'* no airflow then

do you still need to drill a 180 t-stat? I dont wanna post wrong info.

Need...no ... want to ....maybe. If you are modded pretty well you will want to... stock..I didn't because I don't want to change it for winter