SB mopar Victor heads

So those have to go on a R-5 block? I see it has a bottom row of bolts.
A bottom row of bolt holes does not automatically mean 48* block. The can be cut off for a standard block/standard header if it gets in the way.

so what exhaust do you run? They are not even W2 pattern? W5? These look very close.
There modeled after the W5 exhaust. The intake boots are wider, AKA, W5, as per the advertisements.