Well I've been using richs Brew 20% on my revo 3.3, well my hobby store doesn't carry it anymore because they wont send anymore, so i bought some of that new Powermaster 20% from TAC company, well my car runs like and wont hold a tune, wont idle correctly, so now I'm going to try traxxas top fuel, hopefully it is better, anyone have this problem with the New Powermasters?