I need help...Quick!(please)
So I just got done driving 150 miles to grandma's house. '88 Jeep Wrangler 4.2Lw/weber carb, TR upgrade(stock auto tranny, 4inch lift w/ 33's and stock everything else). Anyways, I was driving in about 30 degree weather up and down hill, basically the whole way, going about 55-60 mph, when I heard a slight click (kinda like a spark would sound)and the engine started to idle really rough and lost some power. I felt the exhuast and it had a lot of pressure behind it. There is oil all over the tranny and engine, from the valve cover down. The distributor has oil all over it. There is a knocking sound like a valve, but it is coming from(i think) the bottom, around the oil pan. I don't think it's a carb problem at all. Any ideas??? anything I can test with a vaccuum gauge? I just replaced the oil pan and valve cover gaskets about a month ago, no leaks so far. feels kinda like it would without the dist. advance hose hooked up, I checked for vaccuum there and it works, so does the vaccuum mechanism. So again, any ideas? Thanks so much!!!