If it were me I'd stuff the foam noodles in the gunnels before I added anything permanent. The foam around my original fuel tank was the reason for it rotting out.
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1985 Wellcraft V-20, Evinrude ETEC 150: SOLD
1979 Marine Trader 44, twin Ford Lehman 120s
2006 Panga 14, Tohatsu 20
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