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View Full Version : Vacuum vs. Mech Secondaries



V1800J
11-15-2005, 09:41 AM
Why would someone want one over the other? How do you decide which one you need?
Randy

396_WAYS_TO_SPIT
11-15-2005, 06:58 PM
I have hear that the mechanical sec gave an advantage on take off. Not too sure about that............ I have ran both and had great success.......

BIGS
11-16-2005, 04:37 PM
Randy......a mechanical secondary carb is always the first choice but you must have enough engine to handle it otherwise a vacume secondary carb is preferred.......List some of your engine specs and we can help you decide........A mechanical double pumper comes in real quick when you throttle it and if the engine is kinda on the small side it can have a hesitation/bog before it comes alive....Jesse
BIGS Performance Products
www.bigsperformance.com