i am running tbi but have just got given a mpi for my 4.3l and want to know what kind for gain i will get.

i think you get a little bit more power and alot better throttle responce

you will definetly gain in mpg.

i am running tbi but have just got given a mpi for my 4.3l and want to know what kind for gain i will get.

You got an engine or what?

Hard to make out just what you received there.

You got an engine or what?

Hard to make out just what you received there.

let me make it a bit simpler i have a 4.3L eninge that is 262ci i an useing throttle body injection and i got a multi port ingection system given to me and i wanted to know what kind of a gain i would get from it.

You do know you will have to swap out the computer, the sending unit, the fuel pump and some of the sensors to install it.