My combo last year was a 68 cuda I pulled a 440 out of a 76 new yorker changed the intake, put 500 lift voodoo cam in it, 830 holley carb, 4;11 gears stock 727 with shift kit I put in it. Went 11;97 @ 118 I was shocked if you run the numbers on some of the other web sites that calculate horspower based on e.t it works out to 430hp which i know its not making.