Ah.
Total Seal has a "unique" second ring that is gapless. You can buy
a complete ring set from them (John Lye likes their sets with moly
top rings) or send them your Deves rings to convert. What they do
is cut away the stock second ring so it's got an inverted L shape
in section, and then supply another ring that fits into the part
that was cut away. The two rings go into the same piston slot, with
their gaps 180 degrees off.
Why bother? Leakdown of 2%, more or less forever. Most engine start
with leakdown around 5% and quickly proceed to 10-12% ... that's lots
power and excess pressure in the crankcase.
Ken G can probably recommend a cam once you pick a redline. I thnk the
standard recipe is lighten, shotpeen and balance everything, put a
harmonic balancer up front, a lip seal in the back, uprated valve
springs, lightened flywheel...
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