Proper fuel upgrade for supercharger?

I have heard many diffent views towards fuel upgrades with a supercharger. My car has apprx. 290 rwhp and I am adding a M90 supercharger and planning on running it at 7-8 psi. I am estimating it to be around 375-400 rwhp. I have a 190 lph fuel pump but is it enough? What size injectors will work. I have heard that I can use smaller injectors with an fmu? Or use larger ones without?

19 lb injectors/.5 = 38 - 38 x 8 = 304 HP
24 lb injectors/.5 = 48 - 48 x 8 = 384 HP
30 lb injectors/.5 = 60 - 60 x 8 = 480 HP
36 lb injectors/.5 = 72 - 72 x 8 = 576 HP
42 lb injectors/.5 = 84 - 84 x 8 = 672 HP

The preferred duty cycle is about 85% maximum, so for a safety factor multiply the final figure times .85.

304 HP x .85 = 258 HP for 19lb injectors
385 HP x .85 = 326 HP for 24lb injectors
480 HP x .85 = 408 HP for 30lb injectors
576 HP x .85 = 490 HP for 36lb injectors
672 HP x .85 = 571 HP for 42lb injectors