[jdorour]

Rich,
Welcome. Toronado is pronounced Tour-O-na-dough not Tour-a-na-dough.
The engine in your car should be a 425CID (7.0L) 385HP (SAE Gross). The Toronado engine shares the same engine block as the other big Oldsmobiles (Ninety Eight, Starfire and 88) but has specific intake manifold and cam shaft. The exhaust manifolds and accessory prackets are also specific to the Toronado. The cylinder heads are the same as those used on the 442 and Starfire (big valves).
The 400CID, 425CID and 455CID engines are the same external dimension and will fit in the car if you install all of the Toronado specific external parts. It sounds like you have a minor fuel problem and will not need to change any major parts.

Trivia...
The 425CID wngine was introduced in 1965 to replace the old 394CID. It was rated at:
300HP with 2bbl Carb and Low Compression pistons (88)
310HP with 2bbl Carb and High Compression Pistons (88)
360HP with 4bbl Carb and High Compression (Ninety Eight, Optional on 88)
370HP with 4bbl Carb, HC and Big Valves (Starfire, Optional Ninety Eight, 88)

In 1966 Olds introduced the QudraJet 4bbl Carb in place of the old 4Jet and the horse power ratings on the 4bbl engines went up 5 horse power. The ratings on the 2bbl engines stayed the same. Olds also introduced the Toronado in 1966 at 385HP. Basically it is the Starfire engine with the 442 cam shaft. 1967 engine ratings are tha same as 1966.