SB or BB a body debate

I must of missed it but want car are you running that you can get BB headers for?
I find it funny most people on these forums tell you don't run a 273/318 run a 360/408 because there's no replacement for displacement but here it's run the smaller bad bore to stroke and rod ratio engine, get a 440 run stock stroke bottom end dump your money in the top end. You got to put a lot of money into sb short block to get it to 440 CID if you did the same to RB you'll have a 622 CID.
71 Demon it's not a problem of finding them it's well the only 2 makers of BB A body headers are TTI and Schumacker OR you can buy flanges with 2" primaries that have 2" long stubs on them to make your own which is what I would do..

I have a 360 I won't be buying a 273/318 LOL a 408 is proven 550-600hp is easily attainable especially if E85 is used...