finally got my engine running. Check it out on Facebook. Search Chris W naggy. Anyway the guy that built it for me said put timing at 6 degree before tdc. It's out of a 78 pickup 4x4. I put a 180 thermostat and it still gets hot. Was up to 220 then came down but was going back up. Try a 160 thermostat? Is the timing right? I drilled a hole in thermostat so I didn't get air lock. Any ideas?