found a deal and hes sellin a load of clutch stuff...he said that in my 500 mxz 1998 the dynamo joes S4X4 helix and these 287 ramps. this a good thing to do and would i need different springs?? thanks

found a deal and hes sellin a load of clutch stuff...he said that in my 500 mxz 1998 the dynamo joes S4X4 helix and these 287 ramps. this a good thing to do and would i need different springs?? thanks
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also he has 280 ramps...which would be better?? i dont want to loose alot of top end but i also wnat more power and the stockers is 281

280s are pretty much a drag race ramp. Real hard upshift, but they back-shift bad. 287s are what came in some of the tripples, thats all I know about them.