When it's damp or raining outside, my engine will bog when I give it gas under power.
When the weather is dry I have no problems at all. My T/A is carbed. Mods in my sig.

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Zepher
'86 Pontiac Trans Am WS6, 5 Speed:
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Recaro Seats,
Alpine CD+Changer,Rockford & Soundstream Amps, Premier TS-1040C Subs, Polk Audio highs/mids.

WS6 Trans Am

 

i would think your getting moisture in the distributor cap or the wires

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86 Camaro with 88 305 LB9 converted to carb, edelbrock performer manifold, S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermo, and fan switch, 5-speed, 3.23 posi

95 Beretta Z26, 3100 V6, 4 Speed auto, stock

 

I will check to see if it is getting wet.
What else might it be?

 

Water clogging your open element air cleaner.
Are you using a paper element?
They can get soggy and close down.
Switch to a K&N.

 

Maybe it's scared of how the other drivers are in the rain? Seriously, I also think either bad plug wires/distrib cap, or maybe some exposed engine harness wires. Make sure the passenger side's front inner fender is in place to protect the computer's harness.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

 

It's none of the above. When it's raining / moist conditions, the density of the air changes drastically (like a 4000' elivation change). I have the same problem when it rains. My mods are simular to yours in my truck. I have the jetting as lean as possible but it still loads up when it's raining. The only way I'm aware of to fix the problem is an igintion upgrade (msd / jacobs type system).

I was hoping someone else had a different cure to the problem myself. Don't really want to pop for ignition box.

 

Are you talking about something like the MSD 6AL? I might have to consider that since this is my only car and I have to drive it this winter, which usually is pretty wet.