I'm betting on the 180 out also. When the dots on the crank and cam gears are facing each other you are tdc at #6. Alot of chevy guys make that mistake since on a chevy it is tdc#1.
Holy crap, THIS I did not know! I've never done anything on a Chevy but I thought the dots on the crank and cam pulleys lined up at TDC for #1 so that's how I set it. We did check for the compression stroke in #1 and the rotor was pointing at the #1 terminal on the dist cap.
