90 Integra GS: Problems Galore

[crazzzyace08]

I just recently bought an Acura Integra with a stock honda b16a1 1.8L efi.. The odo is busted so i dont know the true mileage but i would guess somewhere in the 120xxx range.. The previous owner put an AEM short ram intake, a new cat, and resonator on it, and also advanced the timing from 16(stock) to 26. Tried to smog the vehicle, but it failed epically. took it to a mechanic who ran a compression check and valves 1 and 2 sat at 200psi, 3 sat at 184psi, and valve 4 ran at 90psi. He said the reason for this is a bad head gasket.. But from my limited understanding of cars, aren't gaskets made with metal rings to help prevent this sort of thing? The low compression would mean a bad valve right? Also, just recently (3 days prior to this post) the tensioner pulley for the a/c compressor belt came completely off, there is oil leakage.. is this due to the bolt that holds the pulley opening up the engine block? or should i inspect the oil pan for impact trauma from when the pulley shot out from under the car? Any information or suggestions would be greatly appreciated.

[DownToGround]

generally if compression is low, its rings or valves.. the best way to find a leak, is to clean like a mad man. clean it all up and then the leak will expose itself