Between 2-3k it feels like it's missing a little and sluggish. I can't really hear any miss out of the exhaust though. The plugs aren't that old. Maybe 3 months...Bosch +4's, the dizzy is only about 1-1 1/2 months old. What else could it be?

 

get rid of those plugs, only NGK, or denso.

 

I've was told that after I baught them. Still just trying to figure out the problem, worry about the plugs later.

 

the plugs could be the problem. They are fine in some 4g's and not in others. The dizzy still can be bad (ignitor) I went through 3 dizzy's before finding a good one.

 

my old b18b did that it was teh thermostat ground....check it
make sure it is nice and clean

 

need more info buddy, what motor, miles on motor, parts recently replace?...

 

D16A6, 196K, new dizzy, pretty new plugs

 

check your basic tune-up parts. (cap,rotor, wires, etc...) was distributor new? used? What is the ignition timing like. Advanced, retarted? If there is a problem with the ignitor,coil or distributor, it will more than likely occur at high rpm, or under hard acceleration. I would suggest going to your local parts store and get some plugs.(NGK) good luck!!