Dual snorkel vs. single on 318

mvh said
Probably not. The way to evaluate it scientifically would be to compare the cross-sectional area of the snorkel with the area of the carb throat. Sol one as it is roughly the same, the dual snorkel would not have any noticeable effect, and might even slow the velocity of the incoming air.

Is there even a dual-snorkel air cleaner that has a 2bbl-sized base hole?
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Apparently, yes. The car came with this one on it, but I wanted an original one and a member here had one in black off a '74 dart. $0.00 plus shipping. Had it powder-coated orange. I've been switching them out back and forth, but can't really notice any difference while driving.