p0p_sm0k3

I have a 16 stage 3 cam m7 666 to the wheels. I was getting on it and when i would get close to redline it would stutter then go away and again close to redline same thing. Next day I ripped it at the light and then SERVICE rear axle light came on. Started back up and came back on. Im thinking i need to change the spark plugs. Any ideas? and if spark plugs should i do coil packs as well? if so what spark plugs should i go with and coils?

96GS#007

You need to log what's going on, otherwise you'll just be guessing and shooting the parts cannon at it.

gordoni

Are you hitting the rev limiter?

Dcasole

^^^^^^^^^^^THIS^^^^^^^^^^^^^
It could be a million things , plugs maybe , wires , maybe , fuel preasure , maybe , valve float , maybe , knock retard , maybe, coils highly unlikely....

Don't shoot the parts cannon at it .... log the car and see what's going on
Dave

Citation

Check the small gauge ground wire at the battery. It needs a really clean connection. Many symptoms from that wire. Service rear axle is top of the list.

LT1GMC

Need to log, keep close eye on fuel pressure. Good chance its running low at top rpm, have seen that a few times, especially if no upgrades with mods you have done.