carb isolator block (1 Viewer)

[snorider]

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]

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.