Advice:how Big Pump 4 Nos??
TnT wet kit? A walbro 340m, 255L in tank pump. The stock injectors should be replaced, I would recommend 30#. Now if you search, you find where some ppl say the stockers are good for nearly 550rwhp or some thing, but at 24.4#, your hurting from high injector duty cycle.
If it is a wet kit the injectors have nothing to do with it on spray. Asingle walbro will only safely support 600rwhp,Twin Wallbro`s or a dedicated fuel system would work.