Thanks to all for the info. I will leave as-is for now, then add the
nitrous injection when I mount the supercharger...;-)

I got the changing the mix for added boost bit from motorcycles. Some
(amateur) racers I know cut down on the oil during time trials and
races to boost performance. I think it's only a couple of percent,
though. Could be yet another myth?

Hey, speaking of myths, maybe I'll try the cow-magnets, the Pro-lube
additive, Marvel Mystery Oil... or maybe I'll just go on a diet to
improve the weightower ratio!

Ah, who needs to plane a dink anyway?