Hi there,
Sounds to me like a cam is the key to your happiness. Yours sounds a little small, might want to lolok into a cam/lifter change rather than pulling the heads. You can get a kit for around 100 bucks. Do you have a four barrel, headers, good ignition? I would tune these before a head swap. You also want to be able to burn 92.
hope this helps,
SKEEP