Power for a slant

Just drop in a really worn out 318 and slap a 4 bbl carb on it, that'll be about the same as a mildly hopped up six.

then he has to buy
motor and still maybe rebuild it
transmission and still maybe rebuild it
buy conversion mounts
buy new radiator
splice wiring for SB locations
Exhaust
etc etc etc.

for all that cost he can have that motor built.