Is it the starter? Own 88 for last 12 years, all stock, V8, k&n air, auto, no problems or fixed-it myself. Oil drips got bigger in center. Got lazy and let the local shop replace rear main seal between engine/ trans and intake manifold gasket to stop oil leak. Got it back and car hard to start. Before car would crank couple time and fire up. Replaced premium starter from O'riellys Auto Parts and charged battery. Car starts fine cold but struggle after hot or warm. Another shop check timing ok, said starter draining heavy... Bad starter? Grounding problem? 6 months later, oil start to leak again... Thanks in advance!