Rochester 2GC info

[Mark Yacavone]

Originally Posted by Dwight Southerland

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.

Even the 69 Impala 396/265 used the 1.25 carb, strange as that sounds.