Budget 360 build in heavy car- Which cam?

I feel like this is “Take my bate” question since the way you reply.
I know you know the answer to this.
I'm not trying to bait you, I'm not looking for an argument, I don't think I know? :) why I'm asking, I can't see the overly downside unless his converter is super loose and effecting drive ability or something. Converters are one the things I'm the least confident about other than the basics.