67 Barracuda Big Block K frame keep it or change it ??

Original big block car i wouldent cut up. Thats what slant 6 and 318 cars are for. My 67 was a slanty, going to be a 408. My sons 69 was a 318, but we are going to build it his way. No pedigree in either like a factory BB car has.

and if it's a numbers matching big block please keep the original drive line with the car unmolested
Thanks Matt, I have no intention of cutting it up., It had inner fender headers, and I'm stuck fixing that mess, while I'm knee deep in 52 year old grease and oil, it's what to do with the front suspension, and make it safer/smoother/cheaply...Ha!