Sounds about right, I ran into an issue years ago when I was working on a car and needed EFI hose, my daughter ran to the parts store with my hand written list that specifically said EFI hose. She came back with carb hose and I asked her about it, she told me she just handed the list to the clerk and he got it all. So I cleaned up, went to the store with her and talked to that clerk. He just cut off the requested amount of the proper hose and exchanged it, so I got EFI hose for hte price of carb hose, lol.
Anyway, I did a quick look up, online, at NAPA and that's the price for J30R9 hose so you are probably ok. The carb stuff is half that.
The carb stuff is only rated to 50 psi, EFI to 225 psi, Didn't want you to have an engine fire.