What has boost pressure got to do with coil packs?? RPM and coils are related but the amount of fuel and air being pushed in are nothing to do with the ignition.
BTW, the car crapped itself on Friday (dud wire going into the back of the EFI relay). While fixing it I found 2 boost leaks from the manifold to the charcoal canister. So I blocked one and rerouted the other to the BOV. It boosts damn hard now, it comes on like a kick up the backside.