Rules of SS/AH Class..??

Hello everyone. I would love to know some details about the Class SS/AH. This Class has always fascinated me a lot, love Hemidarts and Hemicudas. My questions are:

1- What is the car's weight..??

2- What type of fuel is used..??

3- What are the engine specifications? (Block and Head must be OEM..? May use crankshaft with longer stroke..?

4- The engines produce how many horsepower..? Around 1300 HP..?


Thanks and appreciate any information..!