bryan1000

If you locate bottlenecks in your setup, you will see gains.

Performance air filters to replace stock
Is my Throttle Body big enough?
Is my intake flowing enough for the heads?
Are my heads large enough and do they need porting?
Do I need a bigger cam?
Is my ignition system powerful enough?
Are my headers and exhaust system not robbing power?
Are my fuel pumps, line and injectors enough to handle all the air?
Do I need to replace old sensors?

All the above will benefit from power adders later down the road also.

Just my $0.02