Thanks Jeff.

Matt, the variable venturi was a late 70's Ford attempt at better MPG from what I understand. It's really sluggish and actually doesn't do that good of a job on the MPG. But then again mebe in in a perfect world it might. I think they continued until 91 then went to full EFI. 79 was the last year they used it on my particular model car. An aluminum intake and Holley 500 will put the go back in that 5.0!