hard time starting in raining humid morning

Car wont start first shot on humid raining days. only on a cold start in the morning this happens.

I have a WOT BOX, you think that could be the problem or maybe the wiring? spark plugs?

2010 3v, edelbrock supercharger.

Sent from my SM-G955W using Tapatalk

Car garaged or parked outside?

How many miles on car, SC, and plugs?

stkjock said:

Car garaged or parked outside?

Click to expand...

it's always parked indoors but this year I left it out a few times and I noticed this problem

Sent from my SM-G955W using Tapatalk

Laga said:

How many miles on car, SC, and plugs?

Click to expand...

32k
edelbrock SC
NGK plugs

Sent from my SM-G955W using Tapatalk

Johnstone said:

it's always parked indoors but this year I left it out a few times and I noticed this problem

Click to expand...

did it rain those times?

if so check for water in the passenger foot well

stkjock said:

did it rain those times?

if so check for water in the passenger foot well

Click to expand...

I don't think the SJB has much to do with the ECM and the way the engine runs.

07 Boss said:

I don't think the SJB has much to do with the ECM and the way the engine runs.

Click to expand...

I don't disagree, however if his WOT box is in that area..... mine is in that area

Yeah, didn't think about that. Seems weird that it only does it on cold start up and high humidity.

What about silicone spray? although its temporary it would tell me there a problem with the wires, no?

Sent from my SM-G955W using Tapatalk

Could be due to low air density because of humidity. Having the colder plugs could contribute to this as well, seems normal. What's your intake system look like? aftermarket MAF? Smaller pulley? Was the car Dyno tuned?
Also what temperatures are you dealing with?