92 LT1 issues
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
I would clean or have engine cleaned. Then add oil dye. After 20 or more miles black light looking for source of leak. Need to get car on ramps or a lift so you can get a good leak from underneath. It could be " China wall" the ends of intake use rtv to seal it to block. Oil can seep past old rtv and run down near front and rear seals.
