7 1/4?

I had a 7.25 break in my driveway with some new street tires on it. it was a stock fifth avenue 318 firing on 7 cylinders. I would go for a 8.25 probably. I think one out of a cordoba or something like that fits right in with out too much difference in length. might find one pretty cheap in a junkyard... I do like the 8.8 idea though