Hy Glen_P, did you have the work on the head done because the engine was running poorly? Has the engine ever run well since you've had it? What I'm wondering is if the valves might be a little tight in the head, and behaving sluggishly at times. You seem to have a miss at idle, and I'm wondering if it might be a sticking valve. Were your valve springs tested, and were they shimmed to the proper installed height after the valve job?
