Misfiring and sputtering under WOT

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glanza2281

Member +
I recently notice that my car misfires like crazy sometimes under full throttle.. then i would lift my foot up and then press again and then sometimes it would be ok and others not. I suspect it can be the plugs but not sure. I recently changed the distributor and all the leads seems good.

Also this happens when the car hits 1 bar. Could it be some fuelling problem as well? car running lean?
 
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glanza2281

Member +
its a fully forged engine (ross pistons and scat rods acl etc), wepr godzilla mani, wepr downpipe, tial wastegate, garett gt28rs turbo, fmic etc
 
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Topher-EP82

Member +
I'll be willing to bet its your ignition leads.. all of mine seemed absolutely fine..

I had the same problem, got a new set of leads and it fixed it... so much so it made 100 Hp on the dyno with the problem with new leads it jumped to past 170 hp
 
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