Filler Neck in trunk w/ Compressors?

Hows it goin everyone? First real post here (go easy on the FNG.) I did some searching and couldnt really find anything as specific as what Im looking for.

Heres my situation, I have a 51 shoebox with the gas dank door shaved so the filler neck sits inside the trunk. The neck currently just has an autozone screw on type cap with a 'decent' seal and Im using the stock tank. I am keeping the back seat so the trunk area will be seperated from the cab/p***enger area.

My question: Would it be safe to run two compressors in the trunk with the filler neck back there as well. My concerns are fumes from the tank possibly mixing with a spark from the compressors when they kick on. Is a simple breather line in the trunk area enough to get rid of the fumes? Should I just mount the compressors under the trunk (Id rather not, seems they might see too much road grime underneath.) What have you done?

Thanks in advance

 

As was mentioned, get a cap that seals and add a vent tube (to the outside)to the filler tube

 

I think this is a great question, i am going to be doing the same thing, thanks for asking the ?

 

You always need to seal off the fumes so they vent ONLY to the outside. If cell phones can set off fumes, then no way am I trusting compressors. Sure "many guys have done it", but its not the ones that succeed that count,,,, its the ones that fail.

 

Thanks for the responses guys. I wanna make sure my car is gonna be safe.