5.9L Magnum build with questions

Well I had an interesting morning. I dropped the block off for cleaning and then he’s going to hone it and install new freeze plugs and oil plugs. Then i made a call to IMM and talked to Brian. Apparently the good EQ magnum heads haven’t been available for some time leaving the only option to run my original heads or replacement OEM castings. I just can’t see spending that kind of money on iron heads with no performance increase. SO, I went with the following. Basically mimicking the Hot Rod 455hp Magnum build, I’m going with a very similar set up. I ordered IMM’s aluminum heads with 2.02/1.60 SS Manley valves, clearanced pushrod tunnels, etc. along with their SS adjustable shaft rockers made to oil with pushrod oiling. I also went with the Icon forged direct replacement pistons. Lastly, I went with the hyd. Roller camshaft Brian recommended with a wide powerband from 2,200-6,200. This set up will give me approx. 10.2CR, a stronger valvetrain, stronger pistons, dropping a lot of weight off the front end, etc. I don’t have the exact cam specs, but it’s around 234/239, .600” lift on a 110LSA. I will post up the specs when it arrives. When the pistons arrive, I’ll bring in the rods to have them installed and bring in the crank to be cleaned and polished. The only real tedious work ill have to do is file fit the rings and measure for pushrods. I’ve done both of those in the past so I should be ok doing that. I guess things escalated quite quickly LOL