If he puts a V8 into that SVO I will personally go to his house and kick him in the nuts. It really pisses us SVO aficionados to see someone ruin such a rare car.
If he is hell bent on a V8, tell him to sell the SVO to someone who will truely appreciate the car. With that money he can pick up a nice 4-banger LX of the same vintage and still have money leftover to throw into a nicely built 302.
FYI...all SVO's were EFI.