Harold and Mary Lou Graves started MAF in the mid 1960's, a couple years before I started Downey Off Road Mfg. in 1970. Harold evidently had some history with Offenhauser (which has a lot of plus, but also they had some very bad intake manifold designs). Harold evidently thought Chevy 6 cylinder stuff worked better on a Landcruiser than stock parts, so he sold a Header, Rochester carb, and Delco dizzy package, which was MAF's claim to fame.
1. Their Header was the old 6 into 1, very easy to improve upon.
2. Their Rochester float bowl was open to the atmosphere, sand dunes just poured in.
3. Their Delco not only had the wrong drive gear on it, but it also would never achieve the 40 degrees advance spark needed during full accelerations.
At some point Kaye (Harold and Mary Lou's daughter) joins the business, and became very Landcruiser savy. Then at another point Marv Specter joined the family business. Kaye & Marv got married, and at some point moved away from the MAF business and went out on their own- - -Specter Off Road was born.
Harold passed many years ago, Marv passed not too long ago, I haven't heard about Mary Lou, and Kaye is still very much in the Landcruiser business, SOR.