I have a high rpm miss right before it shifts, probably around 5400rpm.

I'm going to go ahead and change the coil, should i get an aftermarket one or just an OEM one?

 

I"d honestly go OEM as the aftermarket ones available don't have a real good track record for reliability.

Ryan

 

I'll be replacing my coil soon and I'm going OEM. Some guys have posted problems with aftermarket coils. There is no benefit from a more powerful coil or at least any proof. OEM is more than adequate.

 

This question has been asked in the past acouple of times, try the search function and all will be reveiled...

 

I have a Holley one on mine and it works fine. BTW, are you sure the opti isn't causing your miss?

 

Might try a new COIL WIRE first.First signs of a high rpm miss is the coil wire.Stock coil here.My02

 

i had the same thing going on, then i got a custom chip from madz28.com and the problem is gone.

 

I doubt the coil is your high rpm miss, I f your gonna replace it get an OEM, If your running stock valve train you could be getting some valve float ( Weak Springs). I had the same problem for quite a while and replaced MSD Box,Opti, Plugs,wires,coil,ignition module etc. Turned out to be valve float due to weak stock springs.