Here are my mods so far. stock bore, stock port, T-5's v-force reed kit, Uni-filter drilled air box, Noss Head 21cc. What is a good sand tire for the rear? How many paddles should I get? V-or straight? I want to slide so I assume straight? What is a good brand to get? I would like to keep 20" tire so I do not have to change gearing. Thanks to all that Can help me.