i seen a few of my guys that come thru the paint shop where my cutlass is at an there going New LS1 set up do you really think this is the plan for New muscle Car Movement Jus by changin a Cam in the LS1 5.3 your gettin 360 horses an 400 lb tq. other people i have talked to also said that you would nearly spend the same for a Gen 1 383. to finish my ? if you go carb set up How many MPG would you get.