Back in high school,it was considered a rite of passage,to swap cam/intake/carb/headers and drive it uncorked to the muffler shop.Worst,I did 1994.68 El Camino,396 big cam,2 inch headers uncorked.Break in the cam,rattled the neighbors China off the walls at 10a.m.Have an appointment,muffler shop,3p.m.2 blocks away,no sweat.Fire up the car,run right by the local school,with crossguards.OOPS! Little kids are crying,parents swearing.Sure enough,roll into the muffler shop.Red/blue gumballs,rear view mirror.Sorry for the long post,got anything to share?