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goinbroke2 · 09-12-2011, 07:07 AM

Looking at most carb spec's online it says 2v, part number or 1.563/108.0 or whatever.
This is all chev and dodge and older fords (pre 78 or so)

The question is, the later fords (81 for example) have 2700/all or 7200/all.
Is there more in depth numbers somewhere?
I'm looking at a 81 302 fairmont with a 302 and it has a 2150 (regular 2bbl carb 1.08 venturi) from the factory but the only thing listed is 2700/all. As far as I know, the 2700 and 7200 carbs are variable venturi carbs.

So;
1) do I get a VV carb to be legal or can I run the one that came with the car from the factory?
2) If I have to get a VV and it says "all" can I pick any VV carb? I'm guessing the VV off a 351 2bbl would flow pretty good!

09-12-2011, 07:07 AM	#1
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,631 Liked 393 Times in 153 Posts	Carb question Looking at most carb spec's online it says 2v, part number or 1.563/108.0 or whatever. This is all chev and dodge and older fords (pre 78 or so) The question is, the later fords (81 for example) have 2700/all or 7200/all. Is there more in depth numbers somewhere? I'm looking at a 81 302 fairmont with a 302 and it has a 2150 (regular 2bbl carb 1.08 venturi) from the factory but the only thing listed is 2700/all. As far as I know, the 2700 and 7200 carbs are variable venturi carbs. So; 1) do I get a VV carb to be legal or can I run the one that came with the car from the factory? 2) If I have to get a VV and it says "all" can I pick any VV carb? I'm guessing the VV off a 351 2bbl would flow pretty good!