No spark after new parts. 2.8

[Onehot87ta]

I'm at a loss...

First off, it's a 1987 Pontiac Firebird. With a 2.8l

New parts
icm
coil
wires
Plugs
battery
fuel pump

Im not receiving spark from the coil.

I read 12v from the power to the coil with key on, but during cranking, it drops down to 10. Is this normal?

And I believe I have a dead alternator, would this affect anything?

Thanks in advance, Niko.

[hoogiesngrinderz]

Voltage drop is normal, depending on where youre getting you readings from. Alternator will not affect cranking in any way.

100% positive the coil is getting a good ground?

[Onehot87ta]

Where does it ground, from a wire, or from the straps?

It ran for about 3 miles, then crapped out and hasnt started since.

[hoogiesngrinderz]

I'm not sure on the 2.8, but the 5.0 and 5.7 have grounds on the back of each head

[Onehot87ta]

Alright, I took the icm to autozone, and they replaced it.

Installed, yet still no spark.

the only part I haven't replaced is the pick up, how do I test it? With a DMM?

[Onehot87ta]

Update, new pickup coil. And distro rebuild, she runs, not well, I'm afraid she has a exhaust leak, and needs to be timed.

Thank you to everyone who gave me suggestions.

-Niko