i dont know don, i spent all day yesterday bent over the fendrs getting this thing ready to run and i could hardly get up the steps last nite, today the back of my legs are so sore and tigjht, but its well worth it. about 5;00 LAST NITE SHE FIRED UP , IBROKE IN THE CAM ,checked everything over and pulled her out on the street , took a cruise around the block ,open headers and no hood ,boy she sure sounds sweet