Which old timer gets the furthest in this era if they had the roids of today?

No, that didn't start setting until years after he left light heavyweight. His Lou Gehrigs is actually something his biography didn't talk about too much until after the Marciano fights, but he was having health issues as heavyweight champion. Iirc it was problems with his heart and maybe a kidney? It's been a while since I read it, but he was definitely worried about his health after moving up from 175 but his run at 175 after coming back from the military was absolutely the peak of his physical health.

Tbh, I was just hoping you weren't saying he would've been healthy if he was on steroids

 

I meant more so with modern medicine and proper nutrition/diet he could have avoided lot of the heath issues he had during his career that impacted his performances least that was my initial thought

 

Ruby Robert Fitzsimmons, with the punching power he had with those skinny legs! Imagine him on the best modern PEDS, stomping down the aisle to the ring, after weeks in the gym doing squats! Give that man some awesome entrance music, a light show, and sensitive microphones under the aisle boards to emphasize his pounding steps! Feel the FEAR, Baby!