I recently got an 83 z28 with a 350 from a Nova swapped in and he built it pretty decent but he didnt know a lot of the specifics and I am just wondering what kinda HP rating you guys think...

Only things confirmed is that it is 350 (and it has to be older from Nova), It has Performer RPM intake, Holley 4 barrel double pumper carb, some type of performance heads, sounds like cam upgrade, no A/C

I can burn them all they way through 1st and 2nd

Just have no idea what kind of power this combination will give me..

..and 5 speed

Also if theres any way to Identify more parts that would be helpful.

Could be anything from 160 or so, on up.

What sheet metal it was last wrapped in, is a non-issue.

If you know what pistons are in it, what heads it has, and what cam, we can ballpark what it "should" make.

Otherwise, take it to the chassis dyno. It makes whatever it makes.

Yea brotha man, that's abit vague... Take it to the track and see what she runs!