383 question

Hi all!!

First off, let me just say hello to everyone as I am new to this site. I've been a Chevy man all of my life, but as of last Sunday I now have a 1974 Dodge Dart with a 383 Magnum sitting in my garage!!!!
My question is with the motor, since I really don't know much about the Mopars. I was wondering if some one could give me a ball-park guess on the the power output of this motor and compression ratio. Here is what I was told was done:

1971 Dodge 383 Magnum rebuilt with flat top pistons.
699 oil pan with baffle welded in.
650 Speed Demon carb with vac. secondaries.
452 heads-fully ported with 3 angle valve job.
heads have been milled 0.060 with steel head gaskets.
Holley street Dominator manifold ported to match heads.
Comp XE 268 hydraulic cam. 1.5 rocker arms.
MSD ignition.
Long tube headers-don't know primary size

Not to mention new exhaust 2 1/2", completely new Dana 60 rear with 4.10 gears. 727 trans-all rebuilt. Motor definitely sounds healthy, but haven't really been able to drive it much yet because I need to register it (which I'm doing today). Appreciate any and all input. The car is in great shape and I think I got a good deal on it (around $5000). Thanks in advance!!