Joey; this is one of the many sites i've used besides speaking to many injector cleaning services and shops. I built my own PWM, Hz controller with timer control. Not only forward abd back flushing I used the ultrasonic cleaner plus my pressure vessel to test my own injectors.
Not only the flow patterns watched I found made up a balanced batch of 8 injectors that floe within 0.4% of the set of 8. damn engine when stone cold lights off at the first cylinder over compression. Idles down to 300 rpm's dragging the clutch in 5th at idle until compression prevents follow thru ot tick over. What a difference plus 11 PPM of max allowed of 100 PPM at idle and 10 PPM of 180 PPM allowed max at the 2,500 rpm smog test. You tell me which is better as I had 19 and 16 PPM with Lucas injectors.
Joey; these are F2TE-A3A Bosch injectors with a Ford part number with 23.67 lbs/hr flow.
They feed late full size 351" Ford Broncos. Progress with injectors is why disc 4 hole units came out ve the old Lucas single squirt injectors. I use what works for me not what Stealers tell me I must use or run. Even the 330" 5.4 litre 2002 Ford SOHC injectors are and option but the tighter 4 hole pattern of the A3A injectors keep the fuel off the port walls. Tighter 4 hole pattern yet is BMW's 4.0 litre injectors, tsalking 1 3/8" wide at 10" away from the injector.
This was a fun injector building, testing, learning project besides for future injectors on my BMW's. Add to this how many hundreds of dollars i've saved on injectors. Yes you can pay to get a balanced set that flow within 10% which is the injector production average, many flushing services down to 3% balance with racing injectors at 1% to zero% balance difference. These you pay for also. I'll be a cheap bastard and settle for my 0.4% balance.
Not only this Joey that intake extension and plenum plate work great, best this 4.6 has ever run
the past 8 years. I can stop the motor hot or cold in 2nd gear, ignition on, give the Rover a shove and it will start, best to have a driver inside doing this test stunt. Pictures later I need to download.
You must remember Rover rail pressure is from 2.4 to 2.7 BARS when the standard for many injectors is 3 BARS or 43.5 PSI.
This chart below should help as Stan Weiss has not only injector flows but head flows in cfm's for all vehicle manufactures from stock to full race. Carl.
http://users.erols.com/srweiss/tableifc.htm