Magnum cooling

TT5.9mag said
You should have about 48 degrees of timing in it at cruise. That alone will bring the temp down considerably.

Yeah it’s about 25 degrees at cruise (2400-2800rpm) which is about 55-65mph.

I’ll mess with the timing table to try and feed more timing into it at that range. Manifold pressure is -4.0 to -4.5 at that range also