What's the difference between the 2 injectors?

 

65 horse power.

370 is a 5x12 48% bigger then stock i/c injectors
435 is a 5x14 twice as big as stock i/c injectors

 

Is there one perfered for towing/Daily driving? or is it just a matter of what you want to spend?

Thanks

 

smaller will get you better MPG and will be easier to control smoke and EGT when towing. The difference in cost is mostly the supporting modifications.

 

I belong to the school of do it once. I would go with th ebiggest you can afford (whitin reason) and then just turn down your pump to be were you need/want to be. You can get 435's to make the same power at the same temps as 370's bur 370's wont ever make the power 435's can.

 

Ya that is a good point, I just dont want to push my motor to much as I love the reliabily of the motor and the nice 17.5-20mpg.

 

435's turned back to the same power as 370's wont hurt it. Hell it will probably do better because the pump wont be trying to push the fuel through a smaller hole.

 

I gotcha. I do know that I want to upgrade my injectors soon to as the truck has almost 350,000 so im sure it'll be a hudge improvement.

Thanks

 

Hell I bet even a stok replacment would be an improvment with that many miles

 

haha ya i figured the same thing!