honda 185 power tweeking??

me and so buddies took 185's and made gocarts out of them and have races. all gocarts are the same but i was just wondering if there were any little tweeking i could do to get alittle jump on everybody.(muffler,carb,etc.) good clean fun. any help would be great. thanks in advance.
goges@aol.com

[Da_Catt]

you could put stuff from the 85 and older 200x on there. header muffler, the carb is bigger (2mm?), the cam is better, the head might be better. you could port and polish your head. just about anything aftermarket for the 85 and older 200x should work on your 185.

[Mobular]

All the above plus a 10.25-1 piston.