Yeah basically came to say what andy already did. If you're not kitting or porting it nor planning on it later, just rig up a slip-on or hacked up simple pipe, should get you over 30, as long as all the other things have already been remedied. Garelli isn't a super forgiving ripper but they can be decently reliable with the kits too.
weakends used to make a pretty rad garelli pipe. the shitti polini senor dildopipe might be good on a stock setup. MLM peoples is probably worth it, I dunno. they make good easy stuff at a incredible price considering it's all handbuilt