I have an issue where the car will lose power briefly (engine sort of misses, then keeps going) after I have completely filled the gas tank. After a full fill up it happens every few miles and the frequency decreases as I use gas. After ~3 gallons have been used I don't have the issue at all and the car runs great. My typical fix is to just never fill the car all the way up, but I am curious if there are thoughts as to what is happening? It would be nice to be able to just fill it up. I have a vent tying the top of the tank into the fill neck.