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Ok, "siamese head engine" is a new phrase for me, could you please explain it to me? [/quote]
By design, these engines(Stovebolt, GMC Jimmy and 194-292 6 cylinders)are called siamese because they have one intake port that has to feed(2)cylinders. And for that reason and by this design, they have fuel sharing problems between those cylinder pairs that makes it problematic at best to try to use any form of fuel injection instead of a common plenum carb design setup. Fuel distribution between shared cylinders is impossible to achieve because of the cam timing between those cylinders also. It will be a never ending battle to tune and find a happy medium.
