Pressurised fuel tank

[kma176]

Took the car out today for a shake down after rebuilding MSD distributor
When I came back fuel leak from the tank breather on drivers rear when I removed the fuel cap it nearly blew off with so much pressure and the tank made a loud pop .
What's the best way to bypass the breather tank system - it has four vent pipes that exit on the drivers side of the tank?
Then maybe drill a small hole in the cap??

[Pete]

I had similar on the Barracuda and I drilled a small hole in the cap....seemed to fix the problem, worth a try...

[kma176]

Yeah I thought that, I will try it!!
Any idea on blanking the four pipes coming from the tank - its a bit rusty and when pressurised I could hear it hissing so has a hole ?

[Pete]

I cannot comment on that, mine did not have any of that equipment as it was stripped out with AN lines...

[MrNorm]

You can also get pressure vented caps.....they were fitted standard in some years