Can You Convert Vacuum Secondaries to Mechanical?

You can't convert mechanical secondary carbs to vacuum, or vice versa. Too many differences. You can get either vacuum or mechanical secondary carbs for nearly any application.

What's better vacuum secondaries or mechanical?

Answer: For street cars the vacuum secondary carburetor works best on most cars with an automatic transmission. ... The mechanical secondary carb is best on a lighter car with a radical camshaft, a lower gear, and manual transmission. A mechanical secondary is the best choice for most high RPM race purposes.

What's the difference between vacuum secondaries and mechanical secondaries?

Vacuum Secondary Carbs are a good choice for street cars with automatic transmissions. ... Mechanical Secondary Carbs are often used in race cars that operate at wide-open throttle. They are also a good choice for lighter vehicles with a manual transmission, big cams, and lower rear end gears.