Had my HPDE this last weekend. Car is driving me nuts.
Seems to still overheat even with the new fan/ radiator set up, and I am having issues with the manifold melting the coupler on the intercooler piping.
Before Saturday I am planning to fix:
New Thermostat
Spacers on rear to vent the hood
Adjust timing
new coupler with home made heat shield
ducting/ a block off to direct air at radiator.
Here is a video of a lap from Saturday:
NASA UTAH Open Track/ HPDE- Brent Cheney - YouTube