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got spanked by f7's! i have a 07 dragon 700, lowered withspeed track and chisels. 1st race went vertical and let off. 2nd race, cut a good light, good holeshot, flattened after 200ft. had 165/310 primary spring, 10-68 weights,secondary had 56-40 f helix,red/black spring, 22/40 gears (660 track). pulled 7850rpm. tried 10-66 weights, same results, but pulled 7900rpm. went to 700 mod. class, changed to, 25/41 gears, slp pipe and can. pulled good til half track, then flat again, changed to stock secondary, same results. track tension is loose, ski lift 6" for 50'. "NO PULL" ...... help! check out www.nekdragracing.com
 
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