The cowl induction wiring hole is right above the fuse box area. I'm going from memory but I beleive that it's roughly 3/4" in diameter. You could also look to see if there is a single 3/8" fuel line or a dual fuel line which would also help nail things down. That is unless it's missing. I've got my fingures crossed for you hopefully it's another super car hulk waiting to be saved
Jesse