There's tons of info on side feed injectors but not much on top feed. What injectors drop right in to the stock roller rocker rail? What about plug and play wiring? Basically the setup is a t25 on 7psi and being tuned by an SAFC Neo. I'm looking for the most cost effective setup.

for example the Nismo Injektors. For this smal Turbo are the 555ccm big enought. Or the 480ccm from the S15 spec R.

thanks for the reply. We ended up using 330cc qr25de injectors but will probably end up raising the fuel pressure to get some more use out of them.