I got a custom stainless steel tank from Hector for my 1970 'Cuda. It's an inch wider on each side and has a 2 1/2' deeper steped bottom and has internal baffels.

It bolts into the stock location, clears everything, and the #12 pick-up comes through an exsisting body plug hole in the trunk. It also has 3 #10 return lines and a #10 vent on the passenger side for the Performance Engineering fuel pump bypass lines plus a line to fill/mix race gas from an fuel cell in the trunk.

Nice tank, overall good experience with them. Much better than anything else I could find out there, with more capacity to boot.

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)