Been experiencing a low-load, mid-rpm miss on my 408 lately. Well, really for a long-a$$ time, now. Trying to even remember when it started. Seemed to start when I reterminated my spark plug wires to get them the right length, but other plug wires don't make any difference. I'm starting to think fuel.
Miss happens when I'm very gradually accelerating in any gear except 5th. It's as if the engine is stopping and starting as opposed to losing 1 cylinder. I'm not sure if I'd be able to notice losing 1 cylinder at speed.
The car lightly bucks, lurches, whatever you want to call it. I notice the miss up to about 4K RPM as long as I'm being really nice to the motor. If I lay into it, no such thing as a miss.
Could this be a primary circuit fuel problem? Leaning out?
Possible solutions? This car sounds like such a beast at WOT but I wouldn't mind having to not be embarassed at more reasonable throttle applications!!
