Professional radiator maintainance, anyone else have to do it?

[69fastback]

i never really had any problems with my old copper radiator before i got the car put together i had it flushed and all that but there where no problems after that.
Now i have a aluminum one from giffin so i will see how that works out


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69 428 cobra jet:bored .030, forged aluminum pistons, C & A rings, Engle cam, Edelbrock intake, 750 cmf carb, Hooker headers, March pullies, all ignition componets MSD, Holley 7psi fuel pump, Art Carr C-6, TCI torque converter, 4:30 gears, H pipe, subframe connectors, lift bars.

I aso have a stock 96 GT.