A pinging sound only under a load

Hey Vette, let me know when you get some of that stuff checked we talked about.
Dave

Egr valve is wrkin and the knock sensor is hooked up and still doin it

Ok so even with bad gas it that timing is off it will still ping, so you need to still make sure the timing is checked with a timing light.
You have to make sure the timing is right and if it still does it and the timing doesn't take care of it, the only thing is go with what you think I guess. If you really think bad gas drain the tank. But I don't believe that is the problem.
Now if you have been driving this long time with the ping, there is a chance the motor has damage and no matter what you do if that is the case your motor won't run right.

Like I said it didnt do it till I filled up it was running great

Well if you're so sure you have bad gas drain the tank. You keep going back to that so go with it then, I don't know what else to tell you.
Like I said over and over again "It’s a timing issue" you have to rule this out 1st. The Knock Sensor is designed to retard the timing if the sensor detects a ping. The EGR recirculates the exhaust to reburn the excessive hydrocarbons. The ignition timing is needed for proper engine performance and is set by the distributor with a timing light.

I just had the timing done with a light and its fine dnt know wht else it could be unless I have a clogged injecter if I do how do I clean it without takin it off

I hate to send you for another test, because I think it would be a waste of time. The only thing I can thing of is a compression test.
If you have done all three the EGR, Knock Senor, Set Timing, there is nothing else accept a compression test all 8 Cylinders and post your results, don't just say there are fine, I want to see what results you get. This test will determine if the engine has suffered any damage.
If you don't have a compression gage borrow one, but they only cost $30 at harbor freight tools.

The nearest one to me is 150 miles away

I think I found the problem I hve a clogged injecter

Just to give you some incite on that, a clogged injector(s) won't cause a under load ping, you may have more than one problem. If the TBI injector system has a clog somewhere it will cause a misfire condition which will cause a rough idle, one of your systems.
Now before you jump the gun on a clogged fuel injector you should know that if you don't have enough fuel pressure the injectors won't mist right and will drip. If you think your fuel pressure is low then try a little starting fluid while the motor is running if it picks up and starts to smooth out that maybe the trouble with the rough idle. You would need to do a fuel pressure test to make sure.

Here is another pic that may help you find and identify different stuff on your motor including the knock sensor we talked about since you don't have a manual.

I have a mist on the driver side injecter and the pass side is a drip til I open the throttle then it will mist

I have a mist on the driver side injecter and the pass side is a drip til I open the throttle then it will mist ty

Well Like I said you should do a fuel pressure test to make sure, I wouldn't mess with that fuel injector that you say is dripping on idle unless you know you have good fuel pressure. And if you find you have good fuel pressure in specs not just a guess I would try fuel injector cleaner first, something like seaform good stuff from the AP store. If you find after this the injector is bad you would have to replace both of them in a set, they are not cheap, so don't guess here.

Yea I know 100.00 piece

What would be best

Hey Vette,
You got any f the news on your truck? My astro is still down, getting resdy to tear down the front of the motor.

Sounds like you have the timing off, remember you replaced the distributor.
Now alot times even if you set the timing with a timing light to spects the timing will be off, by the way it's 10 degs. Before TDC. The harmonic balancer maybe off as well so if that's the case you will have to set the timing by ear and performance.