As far as I know, the "factory" for every manufacturer has only advertised CRANK horsepower for god knows how many years now to help sell their product.
I'm going to assume you are making 190 to the wheels as your probably dynoed on a chassis dynamometer and aren't talking about the results of an engine dyno test.
I'm also going to assume you've already PUT $8 grand into the engine bay and have only gained that marginal amount of power over stock.
First of all, the GSR engine has got probably the worst factory intake manifold available from Honda, or at least one of them. Hopefully, within $8k, you replaced it. Secondly, the GSR head does not flow as well as the B16A or B18C5 head, so, most GSR owners get some kind of port work done, with a new intake and header.
The GSR cams and valvetrain don't suck, but aren't really that fantastic either. The ITR has the best valvetrain, less the exhaust valves which are superseded only by the CTR valvesprings, essentially creating the best "R" head you can have (valvetrain wise and referring best to factory components). So, you either upgrade to R parts with a GSR head, or go aftermarket. Surely, with $8k, you rebuilt the head.
The factory girdle on the GSR is pretty great for what it is. I believe it's the best one from the factory in all of B-Series, so, the bottom end is strong, and inside of $8k, you couldn't have done much but make it somewhat stronger. The compression and the quality of the rest of the factory parts is fairly standard, so you aren't very likely to make it much worse, unless the aftermarket parts you've added were complemented poorly by shoddy machine or rebuild work inside of $8k somewhere.
For $8k, you can fairly well build an engine and turbocharge, or supercharge, or nitrous inject, or some combination of the above. Typically, $8k is straight engine work will afford your at least double you're original horsepower.
Basically, there's almost no way you are either overpaying THAT MUCH to have only gained like 40ish WHP over stock, or bought enough bling parts or inefective nonsense to total $8k. My brain can't handle the idea of having wasted $8k into a B-Series to have only gained that much HP. And THAT, leads me to believe something is either not working properly mechanically, the dyno your roll on SUCKS MAJORTASTIC BALLS, or the car needs to be tuned in a major way, or some combination of those above.
Like, seriously, $8k later in a GSR and you'd have to be Helen Keller with downsyndrome to not have broken 200 at the wheels without something being "incorrect" in some aspects or multiple others to affect your output. I'm tellin ya, something's wrong.
Now, with all of that aside, give us the build as precisely as possible that cost you $8k. This information will be almost invaluable to diagnose your problem.