My '95 Suburban with 350 has developed an intake gasket leak, I believe. I can see a puddle of black, sticky goo smelling a bit of coolant on top in the valleys. Once in awhile I'll see a puddle up front on the ground . The intake I see is aluminum. Will I have trouble with this? Do they warp? Someone said they might. I have not seen this overheat. I am thinking I can do this myself......I sure can't afford to have it done.