I believe it's coming from the tank, but i'm not sure how the tank is mounted. is it bolted, or clipped?

90 with 318, tow package, RWD(only)
thanks in advance

 

It's supported by 2 metal straps, hooked on the front end with j-bolts attaching the straps in the rear. The tank is probably not a metal tank, I believe it would be a heavy duty plastic tank, not likely to leak unless it was punctured or something. More likely your leak is coming from a fuel line.

 

I traced all the fuel lines, and found it was thethe Evap. Canister.

thanks for the advise though