Factory old iron just can't compete ... ??

For me it's all in what you want and are looking to achieve. Its all about what makes the individual happy. Personally I'm not a racer I just like old muscle cars. I like classic original appearing cars. I don't care if it's a 90 hp slant six or a 426 hemi if it's original to the car I'm gonna like it. I'm not a fan of modern engines in old cars. Just my preference that is way I didn't do a magnum In my dart. If I was gonna a build a race car or something that I wanted max hp then a modern engine is most definitely the way to go.