it depends what model 1600 you get. there's a 1600 8 valve with tbi and there's a 16 valve twin cam with mpi. the 8 valve puts out 80 or so horses and the 16v alot more but not sure how much. my setup is a 1600 with the 1300 head with a pony carb. this setup I believe produces better low end torque plus its alot cheaper.