ok this car is putting up a fight and its winning right now, on top of all my other issues, there is a big oil leak on this thing that I can't pinpoint, It seems to be coming straight down the center of the block , and as far as I can tell the top end is dry, the pan looks good to , is there something im missing and is a common place to leak? its not small it leave about a baseball size spot over night! any ideas?