Just a quick question. Is anyone running a 1" open carb spacer on their rpm airgap with positive results at the track? Any response would be greatly appreciated. K.D.

Really depends on if your engine needs it, IMO.

yes I have and testing on the dyno resulted inthe power band and torque curve move up by 500 rpm.

Its like wildbillyt said......depends if your engine needs it. It basically is like putting a bigger intake on. If your engine needs the extra air...you will get positive results. All it does is increase your plenum size for more volume.