felt good until the end of the power band car misfired in 4th cylinder

This is after the meth was removed I believe. The changes in the car at this point have been the Hobbs switch finally installed(missing before), meth removed(maybe), manifold plenum for the port injection, and the PR coils removed because the wiring was causing issues according to the shop so we switched to s55 elder coils. Could you also tell me what setting I should use for coil options in Mhd and with this new MHD update is there anything else I need or should add to make the car run better? I am not sure if the meth thing was a real thing he said. I spoke with the shop today and the snow performance team and the shop came to the conclusion that the ground on the meth is causing the misfire. I floored the car today and there was no misfire. The car felt kinda good but as far as making boost and going "fast" I don't think the car liked it.

Misfire in 6th cylinder every time wot