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anyone tried or use a wilson manifolds 1" tapered carb spacer as sold at summit and what results did you get, just want to know if it is worth spending $120 if I wont see any results, I currently run just an open 1" phenolic spacer, thanks for any input!

I have no idea about Wilson spacer but here is piece what has been dyno and track proven and really works : http://4secondsflat.com/carburetor_spacers.htm

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