you could set up multi thottle body injection, some wilde camms, high comp and plenty of porting and polishing of the head, good intake and awsome exhuast set up and yeah you should get some great resaults... but for less than half the price you can do an engine swap and get simmular resaults
as a just for now thing get a performance filter, make up some extractors some some good tuning should have a positive affect on things