gas/oil smell

ok, i have a wicked gas/oil smell in my 1994 Z22, but it only smell when i boot it or when i restart the car anywhere from right after until 30 minutes later. I know its not a leak in my tank cuz it doesnt smell like pure gas. plz help

look at the gas inlet on the intake, the seal on my 96 gave out and I had much of the same prob, if it is that it should just be an O-ring. Good luck

thanks for the help, i hope its onlt an O-ring