Thanks for your reply. I've seen some pictures on the TTI headers and mounts in their stock locations and it seemed like it would create an interference with the modification you did. I'm guessing it was just angle of the photo.
There's so many holes not needed if you aren't using factory insulation or AC/heater box. I used an aftermarket wiring harness so I didn't even need the bulkhead hole. All of my headlight, horn, etc. wiring is run in the fender well.
Take a look at Deutsch connectors for your EFI harness. With these, you will have a weather tight connection instead of a big hole. I did a Holley Sniper EFI installation on a friends car and the hole has to be quite large to fit all the connectors through it.
You can barely seem mine in this photo. Once the air filter is on, it's hardly noticeable.
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