Agreed. A good tune is the deciding factor on your shit blowing up, that and you. Rebuild it with new rings, bearings, gaskets, seals, etc. I would spend the extra money and go ahead and get an ATI tq dampener and get it balanced. KA's are notorious for having alot of vibrations, thus causeing failure. SAFC is a must at the LEAST, honestly i would get a standalone but meh thats me. Most peoples KA's blow up cause there "slapped tougether" others last forever with gum and rtv, do it once do it right.