Originally Posted by Rionart
I make a point of adding a fuel pressure gauge to all my fuelie cars, just tee it into the rubber line before it gets to the solid line for the rear 2 injectors. I mount the gauge itself either on the air filter box or the bulkhead....nice way to troubleshoot real quick...
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. . . and I took that one step further by changing to an adjustable, rising-rate FI regular along with the FP gauge. Minutely adjustable and instant reaction to changes in vacuum (engine load) conditions. A bit pricey, but works awesome . . .
Here's one in my 2.4 GT:
and another in my 3.9 Bitter SC:
