Year, make, model and engine size would help us help you.
adjust your crank back a bit
you need to pull your timing belt set your cams to zero they have timing marks and crank your engine to tdc and put your timing belt back on make sure everthing is at zero or you will not be able to get your timing right by moving your distributer.
If it is a v8 engine ? It will run it's best at 8 degrees BTDC. If it pings under a load then move it back to 6 degrees BTDC.
they do not have timing belts , they have chains , one in back of engine and one in front
Usually start out at about 8 BTDC and advance a little at a time until pinging is noticed, then back off 2 degrees.
On an older vehicle like this , would start at 10 degrees BTDC; vaccum line to distributor plugged while setting timing.If it pings, back it off 2 degrees, if it does not ping under load, add 2 degrees. According to the repair manual timing should be 8 BTDC (6 degrees BTDC for calif. emissions and high alt.)
is the injector pump fuel lines timed from the back of the pump 153724
You can not use a timing light to set the timing on that year engine. The ignition timing is COMPUTER CONTROLLED. If you have not fooled with the distributor then there is no reason to adjust it. But if you have bother it then you will need an oBDII engine scanner to put the timing back to factory specs.
Block off the vacuum line to the distributor and put a timing light on it. Rotate the distributor to about 8 degrees BTDC at idle (750 rpm) and clamp it down tight. Reconnect the vacuum line and you should be good to go. You could experiment by increasing the advance in two degree increments until performance suffers and then back off 1 degree. You would rarely benefit from going beyond 14 degrees BTDC.
Start at 6 degrees advance, (BTDC) and go up from there until the motor pings, under load. Then back off a couple of degrees. That is called power timing it. You will probably end upabout 10 degrees, advanced. If it cranks over hard, when hot, back it off a couple of degrees.
You moved the distributor too far either way is why it will not start.
I'm not a mechanic / technician but I remember having to disconnect the " spout connector " which is a little jumper wire plug near the distributor to set the static engine timing on a 1991 302 . I checked my repair manual and your timing should be 10 degrees BTDC The spout connector disables your computer control over the ignition timing. This MUST be removed for proper timing. If you have properly unplugged the spout connector you will notice NO change in timing when you rev the motor. If the timing fluctuates while reving you unplugged something else. It is usually a Square plug inline from the distributor on the yellow wire. On newer models it is a round plug. When you plug your spout connector back in your timing will no longer be 10 BTDC because the computer now has control over the ignition timing. And btw, if you go 10ATDC you will have zero power, if it even stays on at all. And if your setting to ATDC with the spout connector in the computer is compensating for the outrageous timing setting.