Charger R/T is fitted with a 426 Hemi, and the owner says they found evidence that it might be a warranty block ...

due to its trio of two-barrel Holley carbs that helped it develop 390 hp. At the top of the engine lineup stood, of course, the mighty 426-ci (7.0-liter) HEMI, which, like the Six-Pack ...

When the 426 HEMI was introduced in mid-1964 ... which featured a single Holley four-barrel carburetor. The second was a race version built for drag racing and used twin Carter AFB carburetors ...