I have a 1990 with an ebay turbo kit and recently it has given me a problem

Whenever I hit boost I barely get any power before hitting a misfire (all happens between 4 and 5k rpm)
I smoke tested all of my vacuum lines and fixed the leaks that I found and the car was back to normal for maybe a week before the problem showed up again. I tried replacing the ignition coil but that just made it worse, I checked my spark gap and it was fine, made sure I was running the right plugs, vacuum tested again and found no leaks. The only progress I made was retuning my ignition table which gave me just a bit of power back at 30 degrees. Im not sure if I should add more ignition advance or if its some other issue thats causing it.

Has anyone else experienced this or have any idea what could be causing it?

 

What plugs, coils and plug gap are you running? At what PSI?

 

Post a copy of your tune and a log of the issue happening, that'll help a lot.

 

bkr7e plugs at .030" gap. with 7 pounds of boost

 

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