A Pinto is no different than vast majority of cars that run here. Just build it to the rules.
I have done several different types of racing with Pintos, and they are great to play with.
IF your concerns are specifically about the Pinto myth that was started by a (fake) news agency in the 1970's, then IMHO, just go get a different car to run.
Please note that I will gladly give you as much info as you need, but I would rather post the info HERE (well. at least in the correct section) than a call or text, that way others with similar questions can find the info as well.
CT LeMons 2016 Thompson Motor Speedway #36 Sabrina Duncan's Revenge, IOE Trophy, 5th Place 'C' Class 1977 Ford Pinto
CT LeMons 2009 Stafford Motor Speedway #16 Team Teflon, 11th Place (overall) 1997 Saturn SL2