Oil Support Rails and Drag Racing

I wouldn't use them when there are plenty of kits that don't require it. Use a 4.25 stroke crank with the 2.200 rod journals and then use a 2.200/0.990 rod and get a piston with the 0.990 pin. That is what I have in my Duster and it doesn't have the support rails. The 0.990 pin is smaller and stays out of the oil groove.