The dry system only has a NOS solenoid and uses the vehicle injectors/pump to supply needed fuel. Most use a aftermarket pump and FPR to beef up the fuel system. Now, on a fogger system the actual fogger has two ports one for NOS and the other for fuel so there will be two solenoids respectively. So besides the extra fuel solenoid is that the only difference between the two. Can a purge system be installed on both. Can one aftermarket fuel pump be enough to supply the fogger system will supplying the injectors.

 

Correct!

For the most part, yes.
Sure!

Yes!

 

The in tank pump will provide the fuel for the stock injectors and the fuel soleniod.

You should figure out if you are going with Dry or Wet(fogger) before you pick a fuel pump.

With dry, you want one that can provide alot fuel even at high psi situations.

With wet, you just need one that can provide alot fuel at stock psi situations.

Anyway, if you pick the pump to support the Dry kit, it will work for the Wet kit. It might not work vice versa.

 

But when I finish reading your post I said "cool" Reason being because I just got a Walbro pump GSS-341 I was planning on using for a dry kit