I had bought some rebuilt heads from my uncle that had just sat. The car never did quite run right, but last year it started getting worse. Best described as floating the valves, the motor was getting louder but going nowhere. Some stealth heads fixed that.
After doing that I realized what a baby cam I have and also low compression pistons which were both supposed to be "HP". I was looking into a whiplash cam, but just bought a 2010 challenger and the car fun is a little low. Snowball effect otherwise.