Call Cass. When he broke it down for me, the choice was easy. He sells both and will be happy to build whatever you want. Also, he knows all the mopar pinon offsets and stuff that you may not get if dealing with other dealers. I purchased mine complete with his brakes. Has been trouble free for 11+ years under a 10 second B-body street car. Will likely go 9's this year.

https://www.doctordiff.com/