I dont know if im in the right spot i didnt see a chasis forum but i need to know weather to use chromemoly or dom im doing the cage myself im a experenced mig welder but im not that good at tig welding and i know that you have to tig weld chromemoly. And i didnt know if there are any rules on chromemoly and dom far as NHRA rules. I would like to know what is the wieght difference in the two. The car is going to run in the low high 8s I hope.