Hot Rods Siamese Twin Fuel Tank

Check this thing out! I have never seen one like it until today at the Long Beach swap so I bought it, and I got it cheap. Since it can sit low in my pickup bed, I figured I could use the extra range for long runs. Anyone know who makes these? Or is it a custom job?

Chop

 

Heres the pic...

 

those are common in circle race boats

 

That's pretty bad ass.

 

Who makes these? I got a couple buddies who would like to have them too.