OK need some real advice. I have a real tight budget for this, I only have $350 left to play with. Will an FMU work well enough? The car has 30lb injectors and an 190 lph fuel pump, please any advice will help. Dyno time is part of the budget as well.
An FMU will work, but it's got to be calibrated to the right delivery ratio for the 30lb injectors. The 190lph pump will probably get you by too, assuming you haven't got a slew of other bolt on parts that'll seriously bolster power leves. I'd worry about the pumps capability once you eclipse the 320-330rwhp range.
If you've got a dyno tune calculated into the budget, why not sell off the injectors and upgrade to a set of 42's, then have your tune written specifically for them? No need for an FMU then.
As far as budget goes. Any hot rodder will tell you that your actual cost vs your predicted cost is always at least 2:1.