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Old 10-31-2012, 07:13 AM
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Quote:
Originally Posted by PRHeloPilot View Post
I went to Holley.com and noticed that most all street performance carbs are model 4150. So I was reading the FAQ and it said something about the choke tower. I went out to the hangar and checked and you were right, there it was stamped on the side on the choke tower. I don't know how I missed it. Mine turned out to be a 4160 (3310-4).
There you go! That's a good carb, BTW. It's quite flexible, it compliments the RPM intake and is all the carb you'll prolly ever need for a street driven SBC.

A 4150 is easier to tune because it has a secondary metering block instead of a metering plate. The block means it'll have replaceable secondary jets. You can convert your 4160 to a 4150 by using Holley p/n 34-13 should you ever want to do so. You'll need a longer dual feed fuel line, too.
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