How fast do whelen modifieds go?

May be...

on the nascar video games they get up to like 120 but i don't know if i would trust that

There speeds vary on track. Since most Whelen series tracks are short track, there speeds can be asa low as 45 mph all the way to around 139. Very rarely will they hit those top speeds. The average speed at the short tracks would be around 99mph.

It is entirely up to what track they are running on ( Lengthwise) and the drivers right foot!!!!!!!!!

Not nearly as fast as when ol' "Flyin' Flynn" Foonman was wheelin' them things.Man could he drive!