Is this a age difference occurence?

My women would love to drive my cars but one is a manual (I'm teaching her but it's scary and not fun for my car..) and the other is a race car with a hard mount seat welded to the car and tied into the cage.. at 5' to my 6' 1" she ain't even close to touching the pedals... Dose the NHRA alow blocks strapped to shoes?
:)