Ok 1st leak was because I tightened down the pump screws too much. I recently removed the tank and installed a new gasket and all seemed fine until today. I was in the shop posting up something and noticed a large puddle under the car. At first I thought it was trans fluid because of location under the car but then found it was dripping off the rear differential from the vent line just above. I filled it up yesterday and there was no leak this afternoon until sometime after I removed the carb to check throttle blade settings trying to fix another issue. So I’m like wth! Siphoned 6 gallons out and seems fine now but now I’m like how do I trust this fuel tank now? 20 gallons of 93 no ethanol yesterday was $70! Anyway I have it installed right up where the charcoal can was. I can take the back seat out and try to put it higher in there but that scares me too. anyone that has this tank for a ‘70-73 lmk where you installed the vent and do not have this issue please.