C4 with 3500 stall or 5spd

[spike]

I was wondering which would be the best way to go on my transmission. I only drive it to the track on thursdays and to the street races on saturday night so i'm not worried about high RPMs without an overdrive.I'm talking strictly performance when racing. Am I going to see better performance with one or the other. I know automatics are more consistant, but is there any other advantage.
Thanks in advance for any reply's.

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90 LX,full exhaust,Stage 2 Trick Flow heads,4.10s,southside uppers & lowers,Scorpion 1.7 rollers,GT 40 upper & lower,Under drives,30lb inj,B-303,Pro 5.0 shifter,70mm TB,75mm mass air,msd 6al,BBK cold air,adj fuel reg.,190lph,100lph inline, Hoosier D.O.T. slicks.150 shot NOS