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  5. EC 443INT EC Intake Manifold 1-Inch HL to Briggs Animal
EC 443INT EC Intake Manifold 1-Inch HL to Briggs Animal
443INT EC Intake Manifold 1.00" HL to Briggs Animal
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EC 443INT EC Intake Manifold 1-Inch HL to Briggs Animal

Part Number: 443INT
Online Price: $48.99
Intake Manifold EC 1.000 HL to Briggs Animal
Availability: In Stock.

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443INT EC Intake Manifold fits a 1.00" Tillotson HL to the Briggs Animal(Model 12) cylinder head(does not fit world formula). 

This is the intake used for the 1.00" Tillotson Carburetors used in the Briggs Animal Limited Modified Class and some open classes cases using casted heads. We highly recommend using our HL-304WX-11 EC Dominator, the winningest OHV limited modified carburetor ever. 

Designed and CNC machined to match each unique intake port shape precisely at the block or cylinder head entrance. (May vary on head type and model)The resulting action is no turbulence causing misalignment and much better control of the entire intake tract's laminar flow. By using the Tillotson carburetor, we can create the best angle through the port. The pulse hole is precisely located for increased pumping action at high RPM. All installation hardware included.

If you are looking at the length of the intake as a way of port length tuning for the engine, there are a few things you need to know. The Tillotson carburetor, being a diaphragm pump carburetor, needs a good vacuum or pulse signal from the intake. If you make your intake too long, then you lose signal to the carburetor and potentially hinder its tuning and performance. Tuning your port runner length is more of an exact science than many realize, and simply adding more length doesn't always net the gains you want; where you want. Your carburetor, head ports, and cam timing, as well as where you want your engine to gain, are all part of the science of port tuning. Unless you have the equipment, time, and money, it's difficult to test the theory, and your gains may be minimal. 

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