4-bar / back half the HemiDenny / HDK way

this Dart will be low, the actual ground level (up 3") simulated by hi-tech stacked 2 x 6 scraps. Gas tank will be 8" off the ground. Plenty of room for the rear mounted coil overs , panard bar and tail pipes. They have plenty of room between the rear frame rails and gas tank.

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Just curious how you arrived at 8 inches being plenty? This is something I’m working on with my fuel cell