OS # 8 Plugs work great in the TMaxx.

AS for the stalling......double check your carb needled settings and be sure your on the rich side. Follow the manuals instructions as to where to set them and work from there.

Also....look at your carburetor. Is it loose? It can work it's way loose and cause a problem with stalling. Mine became lose and it was stalling also. Push it back tight on it's mount and tighten the screw/nut that holds it in place.

Good Luck!