Hey guys,
First i would like to thank all of you for puting together an amazingly helpful forum and for helping with everything i've needed so far.
Having said that... I have another problem.  I just got my 98 savage and its running like poo. I drained the gas and checked the petcock and the niether of those are the culprit.  Pretty much in any gear under any load past 1/8 to 1/4 throttle, she sputters and backfires badly.  I took the carb apart when i got home today. It seems as thought the previous owner put a 155 main jet and a 55 pilot jet in there. I also noticed that the full size spacer white spacer was on the needle jet.  I have read things about people removing or reducing that spacer.  What setup (jets/spacer) is going to work best on the bike so it won't backfire and sputter under any load????
In case it matters, the bike has a jardine exhaust, and cone air filter on it.  Thanks very much guys, any help will be welcome and much appreciated.

I'm sorry for not posting to your liking  
I wasn't trying to make it more difficult. Since i had narrowed down the problem i was trying to make it easier to help me, rather than having to read through everything irrelivant from the other post... sorry.

I live in Washington DC, northern Virginia area. I don't know exact altitude, but I'm not in the mountains or anything

My elevation is 265 feet