depends on what you want how how much your willing to spend
with your current set up i rekon you could see 220 amybe a bit more by going low comp
but as ive said efi is the way forward
also its proberbly worth asking the person who is going to set the car up and see what he recommends as they will know more about the frst stuff
i know lee at fusion ran a good power on his and he was on ofac which ive already said is not very good but thats only what ive read and been told as he has proof of it working so proberbly worth a pm to him asking him what was incolved