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36 Posts
my ZR 600 EFI with pipe and chip pulls hard on bottom but dosent pull as hard on top i have a green secondary spring with a 52/44 helix would it be better to go with 53 helix and black spring or go with 52/44 with black spring or 53 with green spring. thks if u can help just wnt my sled to run as good as it can all around the power band with the parts i have lyin around. or stock yellow spring with any of these helixs.