Ws7clamors

Alright I have a p600b procharger on my lt1 and about a week ago I got caught in a heavy storm and ever since my car won't boost, when it starts to boost it starts back firing and cutting out and also every once in awhile it takes a little longer to start but it idles and drives fine up until it starts boosting.

I just changed the plugs and gapped them as procharger suggested to me so around .033 and it runs better now but still won't boost and back fires

Could this be a bad opti due to the rain bc it ran perfect before the storm, or should I be looking at something else like the coil or msd ignition ?

I really need some help its stressing me out!