I'm starting to run out of ideas. Just put in a new Northern aluminum radiator. 22"X19" with two huge 1" cooling cores. I switched to a 7 blade viscous fan, new 160 thermostat, set the fuel mixture a little richer as the plugs were grey and I'm still creeping up around 200 degrees. I'm going to power time it until it pings and back it off two degrees. The only other thing I can think of is to take the rad out of the transmission cooling loop with a 3500 stall. I think the viscous unit on this fan is NFG as its slow and I can stop it with my finger (dumb I know). I'll switch back to the flex fan until I can get a new viscous unit. Any other ideas? pleeeeaaasssee?
