injector question on size

[MXMOVRDV]

What is the stock size injector's on a KA24DE 1994 240sx vert? I need to replace them. #3 is dying. So I will replace all 4. Should I go up a size? The motor is stock inside. Outside is a 3" air intake with stainless steel mesh air filter and 4-2-1 header, no cat, and 3' exhaust to muffler out back. Or just stay stock untill I supercharge it?

[periferal7]

if your gonna SC it, just spend the money now.

[periferal7]

I

if your gonna SC it, just spend the money now.

believe your stock inj. are 270cc