Did the same to my Big Block Chrysler in the motorhome last year, went with a high volume water pump, and had the radiator shop give me larger and more tubes in the radiator, went from 3/8 tubes to 1/2 inch, more flow is good. Yep, did all hoses, belts, and got rid of the fan clutch and went with a flex fan. New high end thermostat, and put in a large electric fan to push more air thru, put in a larger tranny cooler, and engine oil cooler too.
Going to replace the carb, intake manifold, and valley pan, before it hits the beach this year... but, always something.
Bigfish, I think Miladoon makes a high volume pump for the small block chrysler, around 65-70 bucks, money well spent, if your local speed shop don't have it, I know Jeggs.com does
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