Or you can do as I have

You get to keep the original 160cc, plus you get an extra 60cc!

My truck can run for up to half an hour on a full refuel

Also, if you flip it then it'll keep running a LOT longer. The header tanks tend to have a weighted pickup, so your engine doesn't get starved of fuel when it's upside down - it keeps getting just as much as it does normally

It's quite a cheap mod, given that all you really need to buy is the tank - most other stuff you'll have lying around...

I'd get you a link to the tank that you need, but savage-central seems to be running a bit slow atm

Hopefully they're fixing whatever it was that's stopped me posting there for the last few days :P