So, apparently, a lot of Bravada drivers end up replacing their central injector unit (i.e. CPI unit) in the mid-90s Bravada trucks. I need to find one for my 1992 Olds Bravada 4.2L V6 Vortec engine. I''m NOT, and let me repeat, NOT trying to spend $340 on a new one. Anybody know anything?