Hey John, at stock length 16/40 gearing works pretty good. Great for street and strip. If it's just going to be a strip bike only you could get more aggressive with the gearing. Any Shinko is good, the Stealth is great street and strip, the Hook-up PRO is a great strip tire, ok on the street. Tire pressures always depended on track conditions, anywhere from under 15 psi to 25-30+. Aftermarket cush drive rubbers is good. Now with the clutch springs, are they just 'upgraded/heavy duty'? I would highly recommend Brock's clutch spring/cushion kit, and the one piece clutch clutch mod too. When I ran a similar set up, I was launching at 4500 rpm, shifting at tach-indicated 11,000. I have always foot shifted my Busa too.