I got mine installed this morning. It was pretty painless. I just did the main 4 wires to install. There's still 2 leftover for the relay if I come up with anything I want to hook up to it. And the while wire for the 2-step rev limiter.
The system does have a couple little quirks to it. I guess the MAP sensor recalibrates when you turn the car on and off. I did have a couple times during the install when the thing came on and it was reading wrong for the MAP. I think the extension cable I got for the MAP is buggered and contributing to the wonkiness. When I plugged the MAP directly into the main harness without the extension cable, it behaved more like what I expected it to.
Next up, with the car idling, and the auto-tune feature disabled, I could feel it sucking air through its air bleed. I emailed them and they said basically it wont seal up perfectly when its new. The IAC seats up against a seat in the anodized aluminum body. After you use it a while, the IAC is supposed to wear into aluminum and eventually create a better seal.
And then the assumption we had, if the thing ever fails, your car reverts to just a normal carbeurated car. That's not entirely true. When the carb cheater "parks" the IAC, it pulls it away from the seat to prevent them corroding. So its normal resting position is introducing a vacuum leak. To prevent the vacuum leak, you can pull the hoses loose and reconfigure them. Where the MAP and IAC connect to the carb spacer, run one of the hoses and connect both of those ports in their spacer.
As it relates to our 71-73 mustangs, there is enough room on the shock tower braces for both parts of the system. Initially, I was going to put the main box up by the front headlight bucket. With it there, I didn't have enough wire to plug in the O2 sensor. We would need a longer wire for that. So for now, I have it mounted to the shock tower brace. I put the main box on top just in case i need to remove it. After its been there a while and I'm sure it works good, I plan to mount it to the bottom of the shock tower brace where you wont be able to see it.
![1697310574197.png 1697310574197.png](https://cdn.imagearchive.com/7173mustangs/data/attachments/75/75963-fb73ffdc5892360dd4091a10c3768737.jpg)