<VV> gasoline smell through heater

[jeandelucca at aol.com]

hi folks, i am getting a fairly strong gasoline smell through the heater of my 63 monza. this occurs usually on initial startup, the smell disappears after the car warms up and is driven a bit. i see nothing wet or dripping anywhere from fuel lines to pump to carbs, nothing dripping under car either. i am using stock pump. wondering if anyone has ideas or solutions. this has been a recent occurence (past couple of months) thanks, jim