well, there are so many factors other than Compression that will determine what octane you must run.....i have heard of people running 200+ psi on 93 without detonation or overheating problems. i wouldnt mess with compression unless you can take a chance to having to run race fuel....
as for porting, Denny of Flotek (can be found here on the boards) can really work over that cylinder and make that bike scream.
also, a bigger carb, Vforce reeds, aftermarket exhaust will make a big difference.
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Toys:
84 250R, 300 kit, Balanced Crank, FLOTEK porting, Wiseco piston,38mm Keihin, Vforce 3, DG type II, UNI Filter
1980 XL80S
6.5 HP minibike
2002 Ranger,Junkyard rebuild
1969 Broncco TX-6
Any system that seeks punishment of an individual for "wrongs" committed against noone but the law itself is not interested in peace or equality, but in being able to control and manipulate it's citizens. Quote:
Originally Posted by Dirtcrasher  You've already got a sex bolt, the hard part is finding the nut it fits into :lol: | | 
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