This is true, but a stock 454 could easliy run off a 750 cfm double pumper with 50cc pumps. If you bore it and then stroke it on top of other goodys you put on it, chances are 750 cfms may leave that beast thrusty for more fuel. Pop it on, run it and then check the plugs you may have to run some big a$$ jets or switch to a bigger carb like the guy said earlier.
Ok now lets get back to the four bangers

I'm sure Mikes 12sec turbo 4 gets better gas milage than your BBC. I'm also sure that its more dependable than your BBC ( But not sure on that one since none of us drives right anyways). I think the cool part is the fact that he proubly spent 2500.00 for the car and turbo/engine and out ran a 20-30k Fire Bird (v-8). I would guess that it would cost 2500.00 just to build that BBC ( parts/machine work) even with you saving on labbor with your dad.
Disclaimer : I used Mike SVOR since I followed the build on it for over a year. I'm sure there is equaly fast 2.3L turbos out here.