Originally Posted by an8sec70cuda
Add timing and see how it reacts. Retarding timing will make it run hotter.


This!

Dealt with this here lately in my 505. Timing was NOT where I thought it was and it would constantly try to get hot around town. Bumped it 36* and it cooled off nicely.

We run an underdrive pully and 440Source pump/housing. No thermostat!

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.