You can believe that chitttt, I have a 410 stroker in my 70 Dart with 4spd and 355 gears with a 26" tire on it. It is pretty scary on the pipe in 3rd gear, bang 4th and I don't trust it on the street at all, the front and rear starts to float and it forces me to get out of it at around 120-130 MPH! It gets there quickly too:-D