I have an 84 200x, takes off in first great and second ok, but if you get on it in second through fifth,it revs up quick but hesitates to deliver power to the rearend until you back off a little, and then takes off or basically catches up. If you ease in to it it does fine, but seems to be getting worse. Shifts just fine in all gears. Do I need a rebuild and if so what would be a good kit to use? stock right now and really dont plan to build it up much but maybe a simple overhaul later. would like a little heavier clutch just in case of some motor upgrades during overhaul, any info would be appreciated, thanks,