I find this topic very intriguing. I could have my challenger running now with an iron low deck that is ready to go BUT risk damaging some expensive innards. It wouldn’t cost that much to finish it and head for the track. My problem is age. I’m building my car for my son so I can watch him race as I’m an old geezer now and want the memories. HOWEVER, I don’t want to grenade an old block just to “hurry up” and race. I have another car thankfully and can take my time with my BMP block build for my challenger. At least I know it will last. Lots of interesting opinions….. thanks.