I am installing an S-trim kit on a 90 5.0 Mustang. There were two things I noticed when I was bolting the main bracket onto the engine.

1) The 7" inch bolt that Vortech includes (bottom most bolt) is about 1/4" inch too long. This bolt bolts the main bracket to the engine block. My options were to either cut off some of the threads, or pick up the slack with some washers. I used the washers, but it made the bolt head stick out a little. Luckily the bolt head was not in the way of either belt.

2) The bracket does not clear the little metal fuel line retaining clip that is bolted to the cylinder head. You have to either remove this clip or cut a small section of it out. I chose to remove it because it would not clear the fuel lines. Just some things, other than that everything went pretty smoothly.