Unfortunately, the GM Dualjet for computer cars was nothing like the one for non computer applications. Essentially, they just chopped the carb off at the secondaries and figured "Good Enough!" The older Dualjet looks just like a Quadrajet but has solid metal in back instead of secondaries. So, it may very well be that no one makes an adapter for this intake. You may get lucky and find a non computer 2 bbl intake on an older 70's even fire Buick V6 and be able to use that with the adapter. Look at pretty much anything that isn't a Chevy or Cadillac from around 1976-1981 for possible donors. There is also a 4 bbl intake GM used with this engine on some G bodies ( I have seen a GP with it factory) and all B bodies when equipped with the 4.1 liter variant of this engine and there are Quadrajet adapters around. So, that may be another avenue to explore. Honestly though, I would just put a V6 Quadrajet on it if I found a complete setup rather than the Holley. Set up right it is tough to beat for fuel economy and power.
