Skipping/Slipping question

[1986lt1boy]

Sup guys quick question for you gearheads. I took my 86 Ta to the strip this weekend during my 2nd pass i lauched off the tree perfectly and it seemed like just before the car was going to shift out of 1st gear the tranny slipped and the motor just kept reving.( A SMALL CLOUD OF BLACK SMOKE CAME OUT THE TAIL PIPES) I let off the pedal and punched it again and i continued to make the pass down the track. As i was going back to the pits the car felt like it was skipping. Im thinking i fouled a plug or wire. The tranny still seems to shift and drive perfectly i just have this skipping problem ANY Ideas?

Car info

1994 pcm (camaro)
golen 396 LT4 engine(see info)
Raptor 4l60E Trans stage 3 (see info) http://www.transmissioncenter.net/4l...#Price%20Chart
Ford 9inch rear (3:70 gears,posi)
Ported intake to match heads/TB
58mm TB
Cold air intake
Granatelli MAF
1 3/4 Long tube headers w/3 inch collector
Full 3 inch exhaust w/flowmaster (no cat)
Nology Spark Plug wires W/NGK TR55 plugs
Egr block off plates
160 degree thermostat
30 lbs injectors
255 lph racetronix fuel pump w/pump booster harness
2800-3200 Vigilante Converter
LT4 Knock module
Smooth intake bellows
Dynaspark Billet opti Distributor
Alum Drive shaft
Miller Racing Torque arm/crossmember,Lcas,Panhard rod,
Lca relocation Brackets,Subframe connectors
Painless wiring harness
Electric Water Pump
Be cool Alum Radiator
Spal dual cooling fans