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heres my setup, 250 port inj nos,afr heads,comp 224/228 nos cam,3" exhaust,kook headers,390 rear, car is running 10.50s, at 129s,also put in auto, in place of 6/speed w/3000 s/s. what im racing at englishtown is w/315 drag/radials,at about 5000/rpms in 3rd going thru traps,someone said ghange to 342/rear,and i should be in 9s. anybody have any imput. thanks gary
 

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I would think that 3.90's might be to much gear for your setup. I suggest 3.73's for your Auto tranny. :cheers:

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