right i have a 2000 honda cbr 900rr (929cc fuel injected) that has a sb50 kit on it and i wish to upgrade to direct port my 4 venom fuel injectors are tapped into the intake runners just above the valves and the nitrous one is in the airbox but due to space my bike doesnt lend its self to add an extra 4 nitrous injectors next to the fuel ones so i was thinking about fitting 4 cross fire injectors insted i cound not find a fuel injected install guide on this but for gravety fed fuel only and it stated that the crossfire injector should be mounted far away from the valves so i am asking is that just for gravity fed fuel or will fuel injected suffer aswell being close to the valves?

Welcome to the forum!
You could easily install 4 venoms into the trumpets, without any other changes to your fuel setup: there is no need for crossfires here. The reason for the nitrous to be as far from the valves as possible is to avoid nitrous reverting back out the intakes.

If you want CRAZY power levels, then a pro-series discharge tube setup would work without changes to your fuel setup.

Haha i have had the speed bug for a long time but with the kit i dont notice any real gain but if i upgrade to direct port it wont do any harm? ...will it and i guess ill order a 80 nitrous jet and a 40 fuel?

In regard to hardly any gain, what is the bottle pressure when you activate the nitrous system?

You won't notice a difference at all if you convert to DP if you can't get the proper response on what you currently have, it'll just be wasted money. There is something else that prevents you from feeling the power increase.

Before you order jets, let's be sure what fuel pressure you are running as well. But first, we need to know you're nitrous bottle pressure.

How do i find out my bottle pressure?? I think this could be the problem as the bottle was full but quite cold

Bottle pressure is the most common reason for customers having poor performance. When the pressure is too low, the nitrous flow is inadequate and results in a very rich mixture.

The solution is to obtain a nitrous pressure gauge and bottle heater kit. After you heat the bottle up, I guarantee that you'll feel a difference in power for sure!

If you want to test this in a quick manner, you can borrow a digital temp gauge (one for reading hot spots in homes), and heat the bottle up with warm water up to 28-30*C (about 85*F) then test your system. Just make sure there is nitrous in the bottle by weighing it ( a full bottle is best anytime you test).

Just looked on the won website and the bottle blanket is out of stock but i have found the gauge

At least with the gauge, we'll know where your pressure will be. You can still heat the bottle with hot water until the gaauge pressure reaches approximately 900 psi.

What is the temperature of the bottle typically (just give me the ambient temperature for best guess)?