An x-pipe would have to be five feet long , and crosswise. An h pipe might fix the sound, but there is no place where a five foot long h-pipe would be convienient.
I am looking at Daves 69 photo's and the pipes are next to the drive shaft and a X would fit as well as any other X would with or without the fenderwell's. looks to me about a foot long will make it work.
