also, if you only cut one line (core) of the rad, I am sure taking it to a radiator place, they should be able to fix it. then you can send the new rad back.
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97 GTP - 3.25, S1 cam, GPS PCM, P&P supercharger and lower intake, R/T downpipe and cat, Borla exhaust, AE077 rims, Lund scoops, SLP spoiler, and a heavy foot.