1970 LT-1 Carburetor Base Gasket
06-01-2017, 09:40 PM
#1
1970 LT-1 Carburetor Base Gasket
I have a 1970 LT-1 with a Holley 4150 (list 4555) carburetor and the stock Winters aluminum dual plane intake manifold.
I have been told the open carburetor gasket will allow a small leak across the divided plenum with the opening it creates under the carb baseplate and this leak will weaken the strong intake signal that a dual plane produces and could have an impact on jetting and idle.
What carburetor base gasket should I use; open or 4 hole?
I have been told the open carburetor gasket will allow a small leak across the divided plenum with the opening it creates under the carb baseplate and this leak will weaken the strong intake signal that a dual plane produces and could have an impact on jetting and idle.
What carburetor base gasket should I use; open or 4 hole?
