Actaully Ron, the first Siamese was the snakeskinner car......from sports car illustrated:
"The secondary throttles have been removed, so the engine is always drawing air through both runners. The intake runners have been siamesed along part of their length by cutting out the wall separating them. The cams are stock......."
This car ran
11.83@123 .....launching at 1600 RPM
This is from May 1992 mag...the 1989 Snakeskinner 1