340 coolant temperature

Well still having a problem with higher temp when pushing the car.

I had a leak through the rear bolt hole on left side exhaust manifold, fixed that.

Went to show 92 miles away last weekend and driving at constant 55 mph at around 3000 rpm temp went up to 210~215 (shown on the gauge).
Slow down to 2000~2300 rpm the temp comes back down to 190~195.

I think the air flow is still an issue, so looking into changing the fans to standard 18" fan with clutch.

Could anyone tell me what I need to get and where?

Thanks


Definitely not a fan issue if it's getting warm at 55 mph. You don't even need a fan or a shroud at that speed.