408 tuning with a Wideband sensor

younggun2.0 said
i have the bushings made by 4secondsflat. your going to have to file 2 parallel sides of the bushing to get it into the slot in the dizzy. it will end up being like a oval. just a heads up.

I was told this is one way to do it. Another member said he increased the size of the slot which is what I have planned.