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Lew Silverman · 08-30-2011, 08:22 AM

Good Question!

Go to the NHRA web-site, click on the "Competition" button , and look for "Engine Blueprint Specifications". The 1975 Chevrolet 350 factory rated at 165 HP uses a Rochester 4-barrel #7045206 with the automatic, (the number should be stamped into the side of the carb vertically) although any Q-jet with dimensions of 1375x2250/1218xAir Valve can be substituted. I'm not really sure how you identify who modified the carburetor, but there may be a tag or other indication somewhere.

Good luck with the build!

Lew

08-30-2011, 08:22 AM	#2
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: Carb Identification Good Question! Go to the NHRA web-site, click on the "Competition" button , and look for "Engine Blueprint Specifications". The 1975 Chevrolet 350 factory rated at 165 HP uses a Rochester 4-barrel #7045206 with the automatic, (the number should be stamped into the side of the carb vertically) although any Q-jet with dimensions of 1375x2250/1218xAir Valve can be substituted. I'm not really sure how you identify who modified the carburetor, but there may be a tag or other indication somewhere. Good luck with the build! Lew __________________ Lew Silverman #2070 "The Wagon Master" N/SA