Carb to hood spacing

NHRA1926 · 05-19-2021, 09:48 AM

How much room is needed between the carburetor vent tubes and the underside of the hood before problems can arise? I just installed a flat style hood on my 67 Camaro to be able to comply with a local race class which does not allow me to use my cowl hood. My vent tubes are beveled 45 degrees, but the flat top of the tube is about 1/4 inch from touching the hood. Luckily, there is a small crease in the center of the hood that is beveled up giving me a little bit of room. I'm also concerned with how much space is needed between the top of the opening of the carb and the hood. I don't like the idea of not using an air cleaner, which also does not allow the hood to close when installed. I do have a 1" spacer under the carb that is custom made to the opening of the intake carb mounting surface. I know could just remove this, but not sure how much it will affect the performance of the engine. I have moved the hood hinges up to the highest position possible. Looking for some input from you Stock & Super Stock racers.

05-19-2021, 09:48 AM	#1
NHRA1926 Member Join Date: Dec 2015 Location: Bowling green, Ky Posts: 241 Likes: 12 Liked 232 Times in 69 Posts	Carb to hood spacing How much room is needed between the carburetor vent tubes and the underside of the hood before problems can arise? I just installed a flat style hood on my 67 Camaro to be able to comply with a local race class which does not allow me to use my cowl hood. My vent tubes are beveled 45 degrees, but the flat top of the tube is about 1/4 inch from touching the hood. Luckily, there is a small crease in the center of the hood that is beveled up giving me a little bit of room. I'm also concerned with how much space is needed between the top of the opening of the carb and the hood. I don't like the idea of not using an air cleaner, which also does not allow the hood to close when installed. I do have a 1" spacer under the carb that is custom made to the opening of the intake carb mounting surface. I know could just remove this, but not sure how much it will affect the performance of the engine. I have moved the hood hinges up to the highest position possible. Looking for some input from you Stock & Super Stock racers.