Getting a new engine together for this year. It's a 540 nitrous motor, so I built some 2 1/4 headers, and modified a Charlies tube chassis oil pan. I would have done a 2 1/4 to 2 3/8 step header, but I built everything around the torsion bars, even though I will switch to Bob's coil over conversion kit. I want the option to switch back if needed, and these were hard enough to fit.