I just put one on my new "max effort" 109 build.
1. It looks bad ass.
2. It mates up to the 3" intercooler pipe
3. I had a bone stock throttle body and im building a mid 9 second car, so it made since.
No regrets, nice piece. I called him up and I had it two days later.
what did you notice about the 104 vs the 103s? How did it like it better?
My stock longblock @ 35psi on e85 ran best with stock heat range plugs too. no knock. I tried colder plugs and it ran noticeably rougher and I fouled a couple of them in short time.
thanks. Still wondering about the spacer. I have to go to my shop this weekend and look at it again, but I was sold a valve cover spacer, saying I needed it to clear the rockers. So wondering if I need two sets of gaskets or RTV one side of the spacer, etc.