Small block headers: worst to best fitting. List your experience.

If anything I'm aligned a little more toward the passenger side. I bought the Borgeson box last year so it's gotta be the newer version. This is also a magnum block, if that makes any difference.
I run a magnum and tti’s on a stock pwr steer box and it’s good. People say Doug’s also fit my application good to. If the motor is centered right and high enough I’d have to say it’s the borgeson?

I did have to grind down the mid truck mount bosses (both sides) on the block for the tti’s to rest flat against my head. Are yours clearing there?