Garage Find 1968 Barracuda Convertible, 318, auto

Was there a 4B intake made in 68 (for a plymouth) that I can use on the 318? I know they sell aftermarket, I got that :)
Edelbrock LD4B? It came out in 66 for the 273. It's a great manifold for a 318. They come up from time to time but are quite spendy. $3-500.