There is an atmospheric vent in the front pump towards the top. Of course it's behind the Converter so you can't see it in the car.
if it somehow got blocked It could push it out the tube from pressure. It most likely got overfilled. Get it to operating temp & check in neutral ( running...
Somebody asked about video of mine & this is all I've got right now....
At least you can hear it! LOL
http://www.youtube.com/user/chrycofan#p/u/2/MzYDm8BEJCU
Butch
She runs pretty good, never had it to the track. Plenty of torque for sure from the 472. I did load it up against the converter down at Bowling greens track & it spun all through first & 2nd LOL!
Speaking of multi carb'd here's my other car
Butch