7041264 Q/jet anything popular or hard to find ? This is from a 72 running 400 /auto. Thanks
I realise this is nearly a year old question, but I feel my opinion is merited;
7041264 = 1971 Pontiac 400/auto
Considering this is now nearly a fifty year old carburetor, I'd say that good ones ARE getting rather rare to come by.
In the last approximate twenty years, I have come across only two of these units, and after earnestly trying, I had to give up on the first one I had, because it seemed warped beyond my ability to fix it...
Also, the 7041264, and it's stablemate 7041262 (455/auto), in my opinion are both grossly overlooked castings.
To the best of my recollection all other 1971 Pontiac 400 & 455 carbs were the single booster ring units, and are becoming exceedingly rare to come by, and with that cones a hefty price tag - something not all people can afford to pay.
It should be of interest to some, that I have read that it wasn't uncommon for original owners of 1971 Pontiacs which came equipped with the single booster ring casting carburetors to complain about off idle throttle responce (because of the diminished signal which is directly attributed to the single booster ring design), and that often a 7041264 (400ci), or 7041262 (455ci) carburetor was installed to remedy the issue.
For the 1972 model year, Pontiac went back to the dual booster ring castings - that should say sonething in and of itself.
It is my opinion that these 1971 core carbs are ideal replacements for owners of 1971 model year Pontiac 400/455 cars which are missing the correct single booster ring carb - and that when set up properly (via the likes of Cliff) that these should run just as good as the OEM carbs.
The 1971 750cfm (dual booster ring) Pontiac carbs are essentially carry overs from 1970, but with different airhorns which attempted to prevent fuel vapor from entering the atmosphere;
All 1970 & prior 'Ram Air' carbs used the dual booster ring 750cfm casting, so I don't see why these overlooked carbs shouldn't be saved when ever possible.
When comparing the 1971 dual booster ring castings to the 1972 castings, they are essentially the same thing, with the sole exception being that for 1972 the base plate (aka: throttle body) was changed to have a fixed throttle arm...
