The 440 in my duster backfires through the left side exhust of the motor only. This didnt start occuring till I changed the cam to a MP 509 lift.
The car has 906 heads Herb Mclandles headers eldbrock torqer II intake 850 holley double pumper 6 pack pistons decked block . The cam is installed 4 deeg advanced.
The car has 906 heads Herb Mclandles headers eldbrock torqer II intake 850 holley double pumper 6 pack pistons decked block . The cam is installed 4 deeg advanced.
