Super six intake

slantsixdan said

Um...what? Sorry, how do you reckon the carburetor would be sucking any air out of the interior of the car? What air intake mods are you referring to here?

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The last 4 or 5 pictures in the very well done such conversion link appear to show two hoses going from the air filter cover to two holes in the firewall. I assumed it's a race car partially because the heater fan has been deleted & I assume heater core.
Edit. It also appears that he has put a seal on the bottom half of the air filter cover to prevent it from pulling air in from the engine compartment.