Xtreise

can someone help me .... I bought an 1985 (12a/carb) last fall ...drove that car home (all is well) parked it for winter...she started fine in January/Feb.
In the last couple of weeks I started her she started just fine. (car not plated yet)
I notice two weeks after, on a wet rainy damp day...she had a problems starting.
I know now needs new plug wires.
I got a her started the next day she ran very rough seemed liked she was flooded or something...then I took it on the highawy...in 1st and 2nd she was ok...but after shifting in 3rd....she balked down...didn't want to take her gas !!!

Any suggestion !!!
Regards