Motorcycle Repair: 84 fxst, porker pipes, stock bikes

Question
QUESTION: i have 84 fxst with 48000 km on it    i changed trani to sputhe 5 spd andcarb to mukini 42  pipes are white bros porker pipes    no problems at all but was wondering what i could do to improve power even more      its allready unreal  so many people dont believe theres nothing done to engine cause it blows away 90%of stock bikes old or new       i dont wanna disturb nything drastically until i have to but want n like more power/faster  any tips or hints for now or later?(eventually extreme)      thx n hope to hear frmom u soon  rob        ill send pic soon

ANSWER: the best thing you can do is change the cam to a higher lift cam that will flow better as well as have some head work done or install S&S heads.

Good luck and happy riding
Mike

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QUESTION: thx   since i last mailed you ive found out that the top end has been done....i just dont know exactly what ,so looks like im gonna take apart this winter and find out .  few people have advised me not to touch anything when theres nothing wrong and that i might be dissappointed finding its not the same / as good as previous    i dont understand ,.... if work is done proper , there should be only benefits   no?   really thinkin bout wide tire kit also (200   240)  any advice on to do or not to do ...if theres one kit superior to others      do s or donts?   any advice appreciated    also wanna know if 2 into one tuned pipe makes noticable hp diference   am i losing power with porker pipes (no baffles)  is there better plugs?  hotter / colder

Answer
Lots of questions! LOL
As long as the work is done correctly you are right. There will be benifits. If you are happy with the performance then dont do anything, but if your looking for more then you will have to make changes.
If your looking for a wide tire I would go with the 200 tires. Less changes have to be made. I am not to up on all the kits so its hard for me to recommend one.
The 2 into one pipes will give you more power. Right now, with your pipes, you are loosing power in midrange. Midrange is where you ride most of the time. I have had great success with Champion plugs and you dont need a hotter or colder plug
Good luck and happy riding
Mike