Look at it this way! If the stk one works save up your money for an efi swap if you want to! I went to weber over a stk (hitachi-nissan) carb was that, I was having some serious problems with it, and nobody outside of a nissan factory trained mech was going to touch it! Nissan mech wanted as much as a new weber costs to even look at mine! And the factory rebuilds were like $1000! So, I bought a weber! Like posted before, I LOVE my weber! Ask Marlin or Bigmike about how the one on Marlin's toyota worked? If I remember right, Bigmike said that they would run the weber between the smog tests! And put the factory one back on for smogging!