mazda b2600i injector swap

So this is my question, what better fuel injectors will swap into the b2600i without mods? Specifically looking at the Denso 12-hole 50 micron tapered pintle hole injectors, they atomize VERY well, so i would think slightly more power and a few more MPGs at least. Anyone have the part number for the stock single hole injectors that came on these trucks? Mine dont have any numbers.

Or at the very least the bosch 4-holes, like these...


http://www.ebay.com/itm/1989-93-Mazda-Truck-B2600-2-6L-Fuel-Injectors-Bosch-Best-Upgrade-4-Hole-Spray-/192249549615?hash=item2cc2f7532f:g:LcsAAOxygPtS0Llq&vxp=mtr