Stock ITR ECU in N/A Build Motor

[CW FL5 CTR]

I have an ITR that has a modified N/A build motor. It has the following mods:

12.5:1 Pistons bored over .5mm
Skunk 2 Stage II cams
Skunk 2 valve springs
Larger Injectors
Aftermarket Fuel Rail + FPR
Aftermarket Fuel Pump
Apexi V-AFC

The ECU that came in the car is a 37820-P28-A02 that is socketed, it was supposedly tuned by Phearable a while back. When driving it, the redline comes in at around 7k, well short of the 8400 redline of the ITR. That said, I don't trust the tune that is on it.

Two questions:
1) How can I read the ECU to see what tune is on it?
2) I have a stock '98 ITR ECU, is it bad to plug it in and use it, I would assume you wouldn't get the best performance for the mods, but is it bad for the engine? Maybe it would run rich given the larger injectors and fuel system?

[CW FL5 CTR]

After doing some drives I notice that it indeed does NOT have a 7k redline, it is able to go above it when not WOT. When at WOT it feels like a bogging that will not go above the ~7k mark. After speaking to the folks at Phearable, they think it has the stock 240cc injectors. Can that cause the issue I have? Or will smaller injectors just lean out the A/F?

Anyone or any tuners in the northern Maryland area that can diagnose/tune old school ITRs?