The justy engine or your cg?As long as they're polite...
What about supercharging?
It's worth it for the 4wd but you'd have to speak to justy crowd to see what can n can't be done.Ooo the CG but I suppose either or. I see with the justy's 3 cylinder measly bhp + added weight from 4x4 its seriously not worth it. Would be nice to do something 'different' though. You're efforts are really quite outstanding!
My knowledge is limited massively, might just get myself an engine to rebuild/learn .
My Dad's original 1988 Justy Van has a super 3 cylinder engine with a twin choke carb. A foot full of throttle really moves it along. The 4WD system is electrically operated from a switch on the gearknob and is only any good in slippery conditions. On a dry surface, torque builds up and releases with a BANG!