I am trying to install a boost gauge on my 99 24valve ctd. I have searched the forums for pics and posts but none to help. If anyone can tell me where to put this line into if there is a port somewhere on my block ?

Please any help is grealt apprec...

 

I don't know about any port on a '99, in fact, I didn't know there was one on my '02 until just the other day. On my '99 I just drilled and taped a 1/8 NPT into the air intake horn. It worked flawlessly for years.

 

Really easy...



The threads are 3/4" NPT in the head and you got to use a 3/4" to 1/2" bushing and then a 1/2" to 1/8" NPT bushing... I've heard of a few finding a 3/4" to 1/8" bushing... It's rare around here...