Jump into my build thread. I have the same engine. Hedman makes headers where the drivers side has the two center pipe bulge out and around the steering shaft.
Here's the part:
https://www.jegs.com/i/Hedman/500/69...UDDA&gclsrc=ds
Square ports:
https://www.jegs.com/i/Hedman/500/69...QG2A&gclsrc=ds
Couldn't find the pics in my build thread, so here is what it looks like when they are installed.