what size air cleaner is this?

[MeucciGarage]

i found a dart with a 225 slant 6 in it and i really love his air cleaner. he ordered it from summit but doesnt remember the dimensions and i wanna make sure i order the right one and not one thats not full size and looks goofy

 

[abodyjoe]

whats the tape measure say?

 

[Abodybomber]

Take a look at, Edelbrock 1203,10" & 2"...." probably will need a air cleaner adapter to fit anything other than the usual 5 1/8" four barrel size...)

 

[MeucciGarage]

whats the tape measure say?

he doesn't have it anymore unfortunately this was an old picture he had sent me

 

[CudaChick1968]

I'm going off of memory here but I think it's a 10 inch. It was the same script assembly you show in your post above.
I also have "before" pictures (maybe with measurements) so let me know if you need them.