1978 318

I read on allpar.com that in 78 the 318 used 360 heads and cam. im assuming they did this to offset the power loss with all the emissions stuff. I rebuilt one of these engines which i was planing on selling. Well i bought a car and now is currently in my 74 duster. When i built this i had no intiention of making a power house. I am curious as to how much power i could expect form this before i go to the dyno. It seems to be pretty peppy, an a-833 od and 8 3/4 with 3.23 s back it up
It is all stock inside except for being bored 20 over.
It has a eldelbrok performer intake and a holly 600 4 barrel.
Also has summit brand headers and orange igniton box.