Alright, I bought a hyper 7 used here on RCU. I got it out today for the first time. It cranked fairly easy, and idled perfect. It'll sit and idle all day long. But when I give it gas, it'll rev up real high and stick there. I know it's not the idle screw, and I reset the needles back to factory settings, and tried retuning from there, but I can't get to rev down after giving it gas. Sometimes I can bump the gas and it'll rev back down for a minute, until I go to give it gas again and it revs back up. After I go round like this a few times, it'll rev back up and stay there...any help would be great...