You will want to put shutoff valves on each line running to engines or you'll suck air from the engine not in use, a pair of needle nose vise grips lightly clamped to fuel line will do the trick and get you fishing till you can get a proper set up. A remotely mounted fuel filter/water separator would alow you to bring one line in and two lines out also you can put your valves coming out of it. you will want the primer bulbs on each line out of filter to engine.

I have run split lines without valves or anything else for 17-18 years. No problems. I run them out of a spin on fuel water separator. Not to be a wise guy, but please check that the bulb is actually creating suction on the end you want it to. Out the end of it on your thumb, then squeeze it with the other hand, If it doesn't try to latch onto your thumb, there is an issue. If it tries to blow your thumb off, then the bulb is going the wrong direction.
My .02

LOL It was the first thing I checked! :-)

Thanks again guys it is working now!!

Now to solder the darn connector for the new antennae...why cant anything be easy?? LOL