Here is the whole story of my car.
First things first. Thank you @SHOdded for helping me with the information below. His knowledge and experience with this platform is immense. What to expect: Post one: General knowledge of the SHO and what to expect. Post two: The Story of M, my SHO. I posted all of my mods, current mods...
shoforum.com
Here is the condensed version of power mods and what they did:
So from my research most stock SHO's put about 290 HP and 300 TQ on average.
Full disclaimer: Brad from AJP Turbo is the only person who has tuned my car.
When I first tuned the car (plugs, K&N drop in) on 91 it made 366 HP and 414 TQ in 105 degree heat. so +76 HP and +114 TQ over stock. (366hp/414tq)
Next was the E30 tune. Car made 391 HP and 470 TQ on 91 octane with Torco T85 E30 mix in 90 degree heat. E30 added +25 HP and 56 HP for a +101 HP and +170 TQ over stock. (391hp/470tq)
Literally just the AJP Turbo E30 tune was the biggest bang for the buck in my build.
Then came the GH IC. The car actually lost power in cooler temps with a revision. The GH IC was a bit too big for my particular turbos. Car made 388 HP and 463 TQ on two less PSI of boost. So -3 HP and -7 TQ made +98 HP and +163 TQ over stock. Brad did state in an email this could happen, because he was seeing boost tapering bad on my car in the logs.(388hp/463tq)
Next my full exhaust mod. Revised AJPTurbo E30 tune on stock HPFP, Gearhead Intercooler, PPE Catted Downpipes, Custom Magnaflow Resonator. DP's and Custom Magnaflow Resonator, going through stock mufflers netted me +3 HP and +24 TQ bringing up the numbers to +101 HP and +194 TQ over stock. (391hp/494tq)
Finished the cycle with the FS HPFP (who I bought from BPD) and removed the GH IC and replaced with a stock unit. I documented it in detail earlier in this thread. Brad sent me a revision for the HPFP and stock IC. Car was on 91 mixed with pump E54 for pump E30. All pulls were back to back, with minimal cool down, and I was not using my Ice Water IC Sprayer on the dyno. Car actually made 414 HP on the first pull but TQ didn't register because of the connection to the MSD coils. He fixed the issue and the second pull netted 411 HP and 546 TQ. However if you look at the dyno sheet, he didn't actually get the true peak. It is probably in the 555 to 565 TQ range because it was already falling before the dyno recorded. So +20 HP and +52 TQ finishing the numbers at +121 HP and +246 TQ over stock. (411hp/546tq)