Originally Posted by Blakebird
The Acerbis doesn't require 'major mods' to anything - I think the most people have had to do is pry the lobes apart a bit to get it to slide down over components.
With two petcocks, you won't have to do the tip & slosh to make use of all the gas.
I know this is an old post, but I just got a Clarke tank and have been wondering how to make use of all the gas considering there are two lobes and only one petcock. Do you literally have to tip it to the left to get the gas over to that side?