900 hp NOS motor after going a tad lean just one time $18000, hood blown off from backfire, sturdier drive train (converter, trans, drives-haft, upgrade to 9 inch because them are the most awesome rear known to man )to handle the extra TQ $$$... it may end up cheaper but it is not as easy or cheap as just hanging a hose from the bottle to the air cleaner and certainly not as fun having to go get the special sauce all the time in my opinion. Also a lot more hoses and wires running all around under your hood and that just annoys me.