Hey all you TBI guru's . I have 4.3 Injection on my 3.8 that obviously did not come with injection . And I realize that there is 500cc difference in the two systems . I guess it is like running 350 stuff on a 305 . Problem is it runs way rich and I have noticed a huge loss in power . I have a 4.3 in the garage that I could get rebuilt or Am I missing something here ? Could I run a fuel regulator and lean it out a little to offset the difference ? if run too lean I will be rebuilding a motor anyway I guess . has anyone else done a tbi swap onto a monte 3.8 ?