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Dwight Southerland · 09-18-2015, 06:47 PM

I believe that the 1969 and 1970 Chev 350 250 were the only engines to use this size carb. I queried the database for the ClassRacerInfo website and they were the only two engines that used a Rochester carb with 1.375" venturi.

There were some Oldsmobile engines from 1969 thru 1972 that used 2-Bbl carbs with 1.313" venturi.

There are no listed carb sizes for the Pontiac 2-Bbl carbs in the Tech Bulletins until 1974.

09-18-2015, 06:47 PM	#1
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,001 Likes: 64 Liked 780 Times in 194 Posts	Re: Rochester 2GC info I believe that the 1969 and 1970 Chev 350 250 were the only engines to use this size carb. I queried the database for the ClassRacerInfo website and they were the only two engines that used a Rochester carb with 1.375" venturi. There were some Oldsmobile engines from 1969 thru 1972 that used 2-Bbl carbs with 1.313" venturi. There are no listed carb sizes for the Pontiac 2-Bbl carbs in the Tech Bulletins until 1974. __________________ Last edited by Dwight Southerland; 09-18-2015 at 07:06 PM. Reason: added info