carb isolator block

Joined
Jul 9, 2005
Messages
36
Hey I'm new to the board and have a question about the use of the plastic carb insulator block. I am currently running a holley 7448 with a downey adapter plate. What is the purpose of the insulator block? can I just use shorter cap screws and do away with it or does it play some role in the perfomance of the carb? Thanks for the help.

Cheers
 

Tinker

 
Joined
Apr 15, 2004
Messages
2,865
Location
Larkspur, CO
The block insulates the carb from the heat transferred through the intake manifold from the head & the exhaust headers. Without it, the gas in the float bowl would boil.
 
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