Picking Up New 89 Roller

After being wrangles for almost 3 years I'm picking up a 89 lx roller from one of my friends and just wanted to go over the set up and get some opinions of what I have to work with. Car has a t5 and 4.10 gears, bbk long tube headers and matching h pipe but also come with Mac Pro chamber as well in not sure which to run I have no experience with a pro chamber. Car is carbed and the tank has a sump comes with a 650 Holley dp and a 750 Holley hp series carb, msd box, timing control box and distributor. Flaming river manual rack and shaft, no ac or smog, was a 4cyl car. Victor Jr carb intake.
I have a spare short block sitting that's in good shape with a e303 cam in it and a brand new f303 sitting on the shelf, have a set of 3 bar gt40 irons fresh from machine shop off a explorer that have been milled .030 to bump up compression slightly. Have a new set of the trick flow spring upgrade kit for these heads as well I just need to install. Question is which cam and carb should I go with from what I have here. Only thing I'm missing is a set of roller rockers I just have the stock rocker arms, been debating the scorpion racing 1.6 or the 1.7 pedestal mount rockers for it. What kind of Hp potential do I have with its current parts bin I have. Please no flames I got it at a great deal and I'm just so stoked to have a fix again after 3 years searching . Thanks

Which cam and rockers would you all recommend ?

I would think the fcam would have been better matched with the intake and all?

Thank you

Nitrous or turbo will be in the future just need to pick 1.6 or 1.7's and the 650 or 750

The car had a 331 in it hence the victor Jr I know it's not optimal just trying to put it all together with what I have I'm so excited to just have one after so long. I'm hoping to put it together soon