GM-GMC: GMC pickup S15, fuel pressure gauge, gmc pickup

Question
working on a 1988 S15 replaced timing chain with OEM,dist. had been removed checked module(ok)getting spark at plugs fuel is powered at prime(gray wire) and during cranking green/wht, But I am not sure if it is pumping up to pressure. I have a fuel pressure gauge but need to know how to build a splice to get into the system to check it, this is a throttle body and I have not found a port to attach the gauge.  thanks for any help you might give.

Answer
The older TBI system which you are working on did not have the convenient port that newer systems have for checking fuel pressure.  I generally remove the fuel filter and have two fittings made up with hose on either end to tap into the system.  All the parts are relatively cheap and easily found at any parts store.
hope this helps