Fuel Injector Size Recommendations

Injector HP ratings: divide flow rating by.5 and multiply the result by the number of injectors. This uses a 100% duty cycle. These ratings are for naturally aspirated engines. See my comments on pressurized induction in the paragraphs following this one.
Example:
19/.5 = 38, 38 x 8 = 304
24/.5 = 48, 48 x 8 = 384
30/.5 = 60, 60 x 8 = 480

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

Remember that the above ratings are at 39 PSI. Increasing the pressure will effectively increase the flow rating. Example: a 19 lb injector will flow 24 lbs at 63 PSI, and a 24 lb injector will flow 30 lbs at 63 PSI.

30's if you do a dry kit and 24's if you do wet. I would just do 30's either way incase you upgrade your n/a combo down the road.

Use a 255 high press pump for the dry kit and a std 255 if you do wet.

19s will be fine with a wet kit , put a good fuel pump in the car and use a wet kit , stock timing , 1 range lower heat range plug and a 65 nitrous and 36 fuel jet , should dyno about 360 rwhp and 500 rwtq almost identical to a friends setup