hey guys i got a d15b4 on my eg. its a GL eg so dual carby :/ but anyways i just want to mod it around for fun and no intention of getting a new engine anymore because i am a l plater

anyways on topic was wondering waht would give me more powaaaaaaaaa !

does adjustable cam gears do anything ?
does a heavy duty clutch help ? atm my clutch is dieing. when i shift from first to second it jumps to 80 then holds there for about 3 seconds, sounds like the clutch is riding up a hill ..

atm i got
-motor bike filters
-downpipe on headers
-cat
-piping
-straight through cannon.
-carby springs cut
-dizzy cleaned
-new spark plugs and leads

what else is there besides weight reduction ?