Got a new fuel pump installed today. It is a Bosch for an 87 carb model, it was $18 through Amazon, and I must say it is nearly like the original Denso.

Well, I took off in a happy state of mind and drove about 10 or so miles to a neighboring town and on the way back, the truck sputtered and popped and darn near stalled on a hill. !! It was running real rough.
I was was fearing I wouldn't make it home and, luckily, I was able to make two traffic lights on the green and run a couple of stop signs without hitting anything or anyone and made it home to my driveway and it died there. I can start it but it burns black smoke some and then a little white puff or two and it will not idle. Have to keep it revved and that isn't easy either. Something isn't right that's for sure.
I am thinking maybe the cold idle diaphram broke/cracked open or something. This truck has been bullet proof so far and has been treated well.
The oil looks fine, nice and clean, no signs of moisture or water, no smell of gas.
I did get a brand new set of NGK blue plug wires, so I'll take a look under the distr cap and inspect that. Also got a set of Denso plugs for the old girl.
I quickly popped the old leaky fuel pump back on to confirm that it wasn't a bad fuel pump I received.
This is just weird, put on a new fuel pump and all heck breaks loose.
Anyone know where the fuel filter is on the 87 2x trucks?