Right trunk extension oval hole - what’s it for?

[7E-Bodies]

Forgive me for having to ask as I bought this project already disassembled. What is this oval hole for? 1970 Challenger RT. I need to know if I should make alterations before spraying epoxy. It'd be nice to know the proper specs and if it takes a grommet/plug etc. Right now I'm only guessing fuel vapor related. Any help and/or photos appreciated.

Kevin

[Dakota]

Fuel vapor vent grommet. 

[1 Wild R/T]

Fuel vapor vent grommet.

Yup.. As long as it's not a California car..... If it has N95 on the fender tag it will have a vapor separator instead of a vent line...

[7E-Bodies]

You solved it @Dakota   
When you posted the part, it looked familiar. The old boy I bought this project from tossed in cases of replacement parts. Sure enough, it was in one. Mystery solved. 35 years away from these cars has left its mark. Thank you!

Kevin

[7E-Bodies]

@1 Wild R/T nope, no N95.