Right above the oil filter.
it hooks on to the engine block and atteaches to the gas line
It does not have one. Just loosen the fuel line up on the filter just a little bit and the fuel pressure will leak off. You did not say what you are doing with it are what kind of problem you are having, You may need to ask your question again. If you are trying to check the fuel pressure, It does not have a valve on it to hook gauge to. You will need to unhook fuel line from back of TBI / Throttle body housing and hook gauge in there. Then turn key on and it should read 9 to 13 LBS. of fuel pressure. No more and no less.
Wiping a clean gauge block across an oiled pad.Wiping any extra oil off the gauge block using a dry pad.The block is then slid perpendicularly across the other block while applying moderate pressure until they form a cruciformFinally, the block is rotated until it is in-line with the other block.
Crossfireinjection.net sells some nice hard piped kits that hook between throttle bodies. Otherwise you have to install a t with a shrader valve on the rubber fuel line, preferrably after the filter. Then hook a gauge 0-15 psi preferrably to the bull end of that T.
if it is a manual gauge it is as easy as following the directions. hook up a wire for the light, a ground and the vacuum hose spliced somewhere into a current vacuum line with the T that is most likely provided.
Ghji
It hooks to a vacuum port on the intake manifold behind the carb.
you have to tap into your intake manifold and install the pressure line there. you can only put it on the intake manifold. then run your line through the firewall. make sure there is no way that it can become cut or kinked. then mount your gauge and hook up the line and the power can come from any 12 volt source.
It does not hook to the intake. It fits on the big vacuum port on the back of the carburetor.
what do you mean by TT impulse line hook-up??????
Yes, the easiest way to hook up is to cut the vacum line about 3 inches before the map sensor. use a rubber vacume "T" adaptor reconect your original line to the strait poetion and your boost gauge to the leftover.
With the aid of adapters, you can "T" into the fuel line at the fuel filter and attach a fuel pressure gauge.