Studder/miss At Shift

[smlblkford2]

Well, it all started in just a couple days ago. The problem if I hold the gas floored while I shift it misses so bad(for 10-15 seconds) you have to let out of it. It does not detonate it just misses. Then it slowly clears up. Its fine if you let off the gas and shift. The plugs, wires, cap, button,fuel pump are new. It also has a msd 6al I was thinking of swapping the tfi module since I have another. Anybody got any ideas?
THANKS

[Gator]

How do the plugs look immediatly after this happens..?

In "missing" do you mean slight backfire..? Is it in the intake or exhaust..?

[smlblkford2]

sorry

It is missing/not firing but not backfireing. Only misses for a few seconds then clears up till next shift.

[SVOeric]

first place to start if your ignition stuff is good --

fuel pressure!!

if your pressure is dropping a high rpm/boost, it will do that.

[smlblkford2]

FIXED!!!!!!!!!!

If anybody wanted to know it was a bad injector on the #1 cylinder.