Hi all, I have a 94 eldorado with 135k and a 95 SLS with 101k. Both are vin y cars. When I punch it in the eldo at pretty much any speed, it picks up and goes like a raped ape, but the SLS is very sluggish until about 3000rpm, then suddenly it has power. If I punch it over 45, plenty of power. NI pcm codes, new plugs, wires, front o2 sensor, intake gaskets, and all vacuum leaks sealed. ALL Of those parts were needed, not just throwing parts at it. . . What gives?