engine noise

Did you by some chance get the wrong header gasket? I think 318 and 360 ones make a difference.

I also have a non mopar, honestly its a total bastard car its not faithful to any makes. Anyway it was a custom motor swap so we modded some headers to make it work in the new chassis. I looked for hours for pin holes but I think there is one left. It makes almost a sound like there is a bad idler pulley bearing. I guess because it is a small hole is whistles slightly. Anyway there is a small chance that is your issue.


I mean how does this thing run? does it feel like it has all its power?