Torque Converter Bolt Circle Wrong

Bummer....doesn't look like Friday will be drop-in day.....

The B.C. on the new converter is 4.85" and my flex plate is 5.5....or something like that. ...
Anyway, do I get a different flex plate or return the converter to Summit? They're great about returns.....

It's a 318 so neutral ballance.
Anyone wanna recommend a CORRECT part number for me?!!!
I believe this one (Hughes) is a 2200 - 2400 stall.....

Sucks, but I've waited this long, I'm gonna do it right.

Jeff