Alright mate..welcome to TorqueCars!
How about a supercharger or a turbo?
Get an eaton m45 off ebay
you should be able to pick one up for less than £150
a bit of inginuity my friend, make a bracket, a bit of pipe work, there you go
that's what i did. if you take the aircon pump off the belt should be long enough.
For best results get a remap for the car, depending on how much boost you are running will depend if the fuelling is up to the job. How much boost do you run with glaymore? Did you have any fuelling issues?
Exhaust headers can make a reasonable difference on these engine so it would be worth looking into that. I think Mugen is the one to go with but I'm sure there are other around favoured by many. Are you getting the head gas flowed and or blueprinting the engine - whilst its out of the car it is a good opportunity to get everything as perfect as you can.