Ok so the coolant wasn’t actually brown. It was starting to get dark outside and it looked brown. I put a filler cap in the upper hose because I thought it was too far above the radiator and when you shine a light in it it’s orange. The radiator did make it run about 5-10 degrees cooler. It also seems to take longer before it gets hot. The car basically runs hot at all times. If you take it out early in the morning when it’s cool the temperature stays around 190-200. I’m running a mechanical advance on my distributer, it’s the msd 8388 I’m using I think the blue springs with the black stop bushing. At idle it 16 degrees, and at 4K rpm, at 34 degrees. The full advance doesn’t kick in until it reaches 4K rpms. Another thing is it also tends to diesel when I shut it off after driving it for a while. If a let it idle for a minute it before shutting it off, it won’t diesel.
