Distributor tower or coil problems

Recently with the rain and snow my truck has started missing but only around 2,000 rpm in lower gears. its a 1996 chevy k1500, it has new plug wires spark plugs and new distributor cap and rotor. When its dry outside it runs fine and everything is tight so I'm thinking it has to be the tower or coil.

Recently with the rain and snow my truck has started missing but only around 2,000 rpm in lower gears. its a 1996 chevy k1500, it has new plug wires spark plugs and new distributor cap and rotor. When its dry outside it runs fine and everything is tight so I'm thinking it has to be the tower or coil.

new plug wires do not mean good wires. measure the resistance and remove wire and inspect for cuts. make sure the wires fit securely. use the silicone dielectric grease in the boot ends.