Help Car Missfiring Between 5-7K Revs.

[thaicoon]

hey guys i just did a wasted spark conversion and it works great but between 5-7k revs it miss fires... <5k it runs better than the rb20 coils and above 7k it runs way better than normal, what do i do? should i just get new coils? (these are second hand coils.) the leads are brand new from the box and the spark plugs are still the same ones that were running fine before the conversion.

i am now using au falcon coils.

[SKITTLES]

I have an RB20DET standard.

It was doing something similar at a similar rev range. New spark plugs with a .75mm gap worked the treat.

Give it a shot.

[thaicoon]

thanx man will do