Cross-pollinating makes is an unforgivable sin. I don’t care who you are.I've seen people get really overheated in these arguments.
Years ago one of my buddies had a 66 fastback Mustang GT350 clone. Ford guys loved the car till they found out it had a Chevy 383ci and a Doug Nash 5 speed. This car was highly modified on the underbody. He loved building things that no one else had. This car caused more than a few arguments.
Hands down the fastest Mustang of this year model I've ever seen.