The port injection on a tunnel ram gets the RAM effect of a tunnel ram without all the distribution and cold start issues of dual carbs. You do lose some of the cooling of the charge but that is true with any port EFI system. Even with dual throttle body EFI you could still have distribution problems just like with a carb.

As far as the bug catcher goes they do make some street friendly ones, even ones that have progressive throttles to help tame them down on the street. There has been several magazine articles on Glen Hunters Drag Week 56 Chevy, I am sure one of them mentions the blower and EFI setup. The car is now twin turbo.