Fuel Cap Question

[Steve69]

Looking for what kind of Mustang Fuel Cap to used under my 69 Mustang
pop up Cap. I ordered a Mustang Cap its way to big. It looks like a non
Pop Cap, that really looks ugly. Should I be looking of a older ford non Mustang cap that fits the filler Neck? Any Ideas?

Thanks

 

[mustangdave]

I believe you can buy a regular twist on cap at any parts store that will fit under your pop-open.