This one didn't fit so well as it is made for Hedman headers and a small block. I'm running the 440 with Pro Part headers, that extend farther back ,and point in bad directions.
Ended up just using short pieces from the front pipes. cut tweaked and welded them to the rear pipes before the mufflers. the first section of the tail pipes out of the mufflers had to be shortened 1 1/2" so the mufflers would fit in.