I'm having a weird acceleration problem that I need some help diagnosing. When I accelerate, the engine hesitates for 2 or 3 seconds before it really starts to develop horsepower. It makes no difference whether I am driving or sitting with the transmission in park. Having the engine hot or cold makes no difference either. When in park, I slowly press the accelerator and the RPMs increase accordingly. After about 2 seconds into this procedure, the RPMs will jump up considerably as though something was holding the engine back and then let go. I get the same problem while leaving a stop light. The car seems to hesitate until I get to about the middle of the intersection where it finally really decides to take off. I thought it might be my idle speed microswitch sticking, but giving it a quick ear test, it clicks off with the slightest movement of the throttle. I'll ohm it out later to be sure. Otherwise, I'm thinking that maybe my idle speed motor may be sticking or running too slow. Is this likely? Another thought might be that something might be going wrong with the spark curve in my distributor. But I'm not experienced enough to know the best place to start looking. So help! Please! Could this problem be voltage related? I have a new Optima battery and a 140 amp alternator, but the alternator doesn't really start putting out voltage until my RPMs increase from idle. Maybe this is the problem? I need RPMs to get RPMs? Another idea is that maybe my spark coil is weak and needs the higher voltage associated with the higher RPMs to make it work at peak performance? Also, I just noticed tonight that the two rear idle adjustment screws were backed all the way out! I'm quite pissed to find this out but glad to correct it. However, it hasn't made any noticeable difference on my idle speed. According to the tach, it is idling between 900 to 1000 RPMs as usual. It also hasn't made any difference in my 'turbo lag' acceleration problem. For the record, my car has no turbo. Thanks in advance, Walt Tampa, FL