The higher temps are at low speeds and stops, cruisin’ speeds (60 - 70mph) are OK, can get a little warm if pushed hard for a prolonged period (75 - 80mph).

Has only 1 pull fan (2 pushers) and not enough room for another puller the radiator is set close to the motor to allow room for the A/C condenser.

I'll check the radiator specs for pressure to be sure.