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Intake Manifold EC 1.355 HR to Briggs 305
452INT EC Intake Manifold 1.355" HR to Briggs 305
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Intake Manifold EC 1.355 HR to Briggs 305

Part Number: 452INT
Your Price: $42.99
Intake Manifold EC 1.355 HR to Briggs 305
Availability: In Stock.

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Description

452INT EC Intake Manifold 1.355Tillotson HR to Briggs 305

The 1.355" sized Tillotson HR or EC Intimidator XHR is gaining popularity in the open classes. We highly recommend using our XHR-2 as a dominant force that makes the most power for 305 running UAS.

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 increase 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 isn't easy to test the theory, and your gains may be minimal. 

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