So i take my car to my mechanic the other day to get the dual exhaust done with the Jegs Header kit for 78-88 cutlass,regal,etc and to get the power booster done. Normally I would do the power booster myself but time hasn't been something I have had a lot of and as for the exhaust well that is a bit of a pain. Anyway, to make a long story short he tells me the kit from Jegs doesn't fit right at all and has to do a lot of modifications to make it fit to my headers on the 307. In addition to that he tells me my gas tank all of a sudden is leaking. Now, I'm all for the exhaust problems but the gas tank leaking? My vehicle has been sitting in the driveway for 4 months in the same spot on an asphalt driveway and gasoline would have dripped and more than likely broke down the asphalt and made a hole in my driveway. I am so suspicious about the gas tank leaking I don't know what to say.