Another "Is Fuel Injection a Worthwhile Upgrade?" Question

I got an order the other day for a $10,000 EFI conversion. Guy has a big drag race Chevy engine and he wants to switch the car over to EFI. The car has never run right with the current setup and he is tired of messing with it so out with the old and in the new. I'll post some pictures once we get the system built but here is a link to the basic setup: Hilborn 300-801 Hilborn Big Block Chevy Intake Manifold Kit