Total Seal gapless rings for 1380cc pistons

On my second time around building this engine, I want to use gapless rings.

1)  Can anyone tell me the part numbers for Total Seal gapless rings that
fit the Hepolite (not Omega) 73.5mm pistons?

2)  Do I need to get top rings and second rings, or just top rings?

Thanks,
    Ulix                                       __/__,__      ___/__|\__
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http://www.mirafiori.com/~ulix/               '67 Sprite     '74 X1/9