When you run the Speedo cable into the tunnel does it stay in the tunnel all the way
to the front and than pop out, or does it pop out soon as it enters the tunnel and run on top of the
tunnel where the wiring harness is. Its been a while since I had this hooked up and can not recall
how it routes .

On top of the tunnel most or all of the way, as I recall. Right next to the wiring harness.

--DD

Is it a tight squeeze through the firewall?

Looks like a big head on that cable!!

Thanks