Misfire

I’ve been doing a lot of work on my 94 gt after I dropped in a 5.0 out of a 2000 mountaineer. I have fixed a lot of the cars issues, however I’m left with a severe misfire on cylinder #8. Just last week I tore into the car and found a bad injector for that cylinder that wouldn’t pulse when power was put to it. So I replaced that and put the car back together just to find that it runs the same. I’ve tested spark to the cylinder and used a noid light to confirm the injector is pulsing. My next step is to go out and get a compression tester to see if that’s an issue. I wanted to come here first however to see if there’s any other possibilities. Aside from the mountaineer motor the car is bone stock. Thanks.

Never mind!! I found it. One of the first things I did was change the spark plug and I cracked the porcelain on the new one when putting it in. I guess the misfire I had was caused by the bad injector, however when I fixed that I also put in that new plug causing that misfire again. I’ll get a new plug in tonight but I’m pretty sure this is my issue.