Engine Accel 24lb injectors

I picked up a set of almost new 24lb Accel Injectors for cheap. Now that I have them I leaned that they are 24lb at 43.5psi fuel presure. The 5.0 is 39.15psi. So if the accel are installed running the stock pressure they will only flow 22.77lb/hr (24lb/hr * √ (39.15 / 43.5) = 22.77lb/hr). So if the 24lb are installed with a MAF calibrated for 24lb the car will run lean? I have a adjustable pressure regulator, so if the fuel pressure is set to the 43.5 the injectors will actually flow 24lb/hr, right?

Yup... Plug and play. They came out of a 92 Mustang with only 500 miles. He added a supercharger and needed bigger injectors.

I have the Accel 24lb which are basically new. I have a set of bluetop 24lb that are used and I know nothing about. Also have a cobra 70mm MAF for 19lb and a C&L 73mm with a red tube for 30lb injectors. Bought the bluetops and C&L off fleabay. They where supposedly a matched set. I cannot find a blue sample tube for 24lb injectors to save my life.

So the question is can I toss on the Accel injectors and the C&L with red tube (30LB) and take the car to a tuner and have a tune made or do I have to have a MAF calibrated for 24lb. Or do I run the cobra 70mm (calibrated for 19lb) as the accel will onlly flow 22.7lb at stock fuel presure and use that to have a tune? Or put in the blue top and get a BAMA tune/chip. BAMA said the could only provide a tune for the accel injectors if I have the correct MAF. If I have to buy a new MAF for the injector swap I likely won't get a tune...

I have a miss (lean situation?) in upper RPM that I am assuming is the 19lb ers being tired. When I studied the dyno posting on the thread Guess my HP, it looks like I should be approaching 300 HP at the flywheel with the boltons I have. So I figured I needed new injectors and was on the edge of needing to step to 24lb. So since I had to due injectors why not step up....