OOOps I see it now. But there is only 1 pipe from the vapouriser so easily changed if needed, Both mine are a single line feed
I will stick with the blowback protector as it can blow the air filter, even more if K&N sponge type. Sometimes you will get a pop when running low on gas and mixure turns weak.
I will agree that no emulators are needed for either 3.5 or 3.9 as the ECU is basic. there is no self diagnosis system like on the later P38 systems.