You asked, don't be offended when I give it to you...
My opinion is, for every one person that tells you "Do what you want", there's 75 that will tell you your crazy to cut up an original car because of how much it's worth...I say this, Unless those folks have some cash waiting to buy that "Desirable" 1973, Low compression, barely able to wear the 340 engine label, big bumpered, bumper guarded, Cuda then, I say do what you like with it...You reallize what is gonna happen to that 1973 Cuda right? You gonna listen to everybody else about how much that car is SUPPOSEDLY worth and you shouldn't "Cut it up", then your gonna be stuck waiting on the ONE PERSON who just has to have THAT car and in this economy, it isn't gonna bring anywhere NEAR what your buddies have told you it will...SO, in the end, you won't have your '71, you won't be able to sell that '73, and you'll be stuck without either.....Don't believe this is true? Well, I dare say go ahead and see what an ORIGINAL 1971, 340, Cuda is listed for right now and you'll see what i mean about the clone thing...A bird in the hand is worth TWO in the bush...The ONLY reason someone is chasing down an original car is 1. they tend to let the "Experts" at the car shows/cruises get to them when asked if it's an "original" car, or 2. They themselves have some sort of reselling issues with buying these Musclecars...If your in this for the car, then build it how YOU want it..If your in it for the money, then, IMO, you've lost the battle before you even begin....
Bypass all this BS and build the car into a 1971. I dare say that an all original 1973 340 car isn't worth what a 1971 CLONE BB Cuda is in the end....