Hey again. I have a 1992 K1500 and my 700R-4 seems sluggish....what I mean by that is....it doesnt seem to have enough power to keep the truck going or it shakes a little when its bucking wind. Its kinda weird really since it only does it every once in awhile or when its windy out. It just doesnt seem to have the power sometimes and I believe it has something to do with Chevy overdrive transmissions cause I had a Blazer with OD. You think a shift improver kit would help this? Thanks again.