Does anyone know what a holley carb jet is?

 

my friend works at clark motorsports. I was told your can do something with the carb jet setup on the 951 to increase the boost?

 

A 951 does not have a carb, let alone a Holley (brand name carburator for american v8 engines) carburator. It is fuel injected. Your friend is obviously messing with you.

 

I know it's not carburated he said its part of a vacuum line coming off the intercooler, but **** i don't know i've messed with plenty of 944's but never had the opportunity to touch a 951. thanks for the help

 

You can in theory put a small jet in the vacuum line coming off the intercooler pipe to the CV valve to increase the boost slightly. Autothority use to do it with their chipsets, and would actually just include a new banjo bolt to use in place of the stock one where it screws into the intercooler pipe. Again, this is not a good way to safely increase the boost. Last time I fixed one of John's car, he had upgraded a 951 with a bigger turbo and MAF system, but didn't bother increasing the fuel levels properly, and the guy was running 15.5:1 AFR's under boost. I don't know how the motor didn't blow up. You need to do it properly, or don't do it at all.