best top end set up on srx 700 ?? 
all out top speed youll need 8dn-00 weights from a 98 srx700, they have lots of tip weight to hang onto the belt on top end, along with a grn/grn/grn spring, 50/36-40 helix with red secondary will yield top speeds IF the chassis is set up in the 120+mph
I have a set 8 dn 00's in the classafieds for sale.