OH YEA IT WOULD BREAK UP A RICH MAN, BUT WHEN I PUT THE ENG IN 1971 I WAS BUYING GAS FOR 23 CENTS A GALLON , U KNOW AND WHO CARED , ODDLY ENOUGH I CAN RUN UNLOADED AT 70 MPH AND GET 10 MPG OR I CAN PULL MY TRAILER WITH MY 4WHEEL DR, MASSEY FERGUSEN ON IT AT ABOUT 9 000 LBS AND IT DOESN,T MAKE A WHOLE LOT OF DIFFERANCE ,WILL MAINTAIN SPEED UP A PRETTY LONG AND STEEP GRADE WITH NO PROB. DROPS TO ABOUT 8MPG WOULD LOVE TO SWAP IN THE NEW 4HK1 TURBO MOTOR FROM A NEW STYLE NPR TRUCK JERRY