i have banks with six-gun & loader, in high tunes, floored off the line, it bangs through 1st and 2nd, but when it goes to third, or when the TC lockes up (not sure which one) it like boggs down and kinda hesitates followed by a big cloud of black smoke. someone told me to change my fuel filter (witch i neeeed to do) and add a bottle of Quicksilver 2 stroke oil to a tank. any comments or sudgestions anyone herd of this????