On my buddies 24v there is a plastic screw in the elbow of the intake manifold i took out the screw by hand and threaded a boost guage up to it but its not reading, nothing at all and we put teflon tape and its all sealed up. what should we do??? thanks...

 

Did you check for a boost leak? Could be a faulty gauge. Make sure the boost line isn't kinked anywhere.

 

I put my gauges in last weekend. I used the "boost bolt" which installs on the intake in place of one of the intake bolts. Pull a bolt out and put this hollow core bolt in its place and connect your pressure line. Works great.