Cone Style Carburetor Spacers Direct Air Flow into the Runner, Helps Control Reversion and Builds More Tork and HP.
541-942-5920
The FBO/ETS Warhead Spacer gives you the performance of a 2" cone spacer but only lifts the carburetor 1/2".
Most performance engines whether it's for street, strip or both will benefit from a 4-hole spacer. Hood clearance becomes an issue on most cars unless the hood is relieved.
By designing our spacer with the cone dropping down into the manifold where the issues really are the effect is more dramatic while still only raising the carb 1/2" off the manifold.
Idle will smooth out as it directs air from the venturi straight to the intake runner instead of tumbling in the plenum allowing the small molecules of fuel to join back together and form large droplets which increase burn time and reduce tork.
The depth of the cone helps shear off the reversion pulses and prevents that reversion from going up the venturi reducing the booster signal. This maintains a smooth constant flow of fresh air and fuel moving through the manifold and scavenging the combustion chamber.
The depth of the spacer hole themselves increase booster signal strength and activate the main circuits quicker for more low end HP and tork.
All these things add up to a cleaner crisper idle, help alleviate stinky exhaust fumes, better off idle response, more bottom end tork and more sensitive idle adjustments.
On a recent Dyno Test: "We installed this spacer with NO Other adjustments and it made 20 more HP on a 700 HP engine from 3500 all the way to 7000 RPM."
| Part # | Above Manifold | Description |
Price |
| WHK5x1.5 | .875 | Full Kit with 3/16 gaskets and long stud kit | $169.00 |
| WHK125x1.5T | .245 | Full Kit with .060 gaskets and long stud kit | $169.00 |
| WHK125x1.5FBO | .626 | Full Kit with 3/16 gaskets and long stud kit | $169.00 |
| WH5x1.5 | .500 | Spacer Only | $150.00 |
| WH125x1.5 | .125 | Spacer Only | $150.00 |
| FBO4H | .875 | Spacer kit 2-3/16 gaskets and long stud kit | $79.00 |
| Down Flow Velocity Tubes | .560-.875 | Coming Soon | TBA |
| DB Air Cleaner | -1.75" | Drop Base Air Cleaner 2-3-4" elements available | From $89.00 |
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541-942-5920
FBO4H 1/2" Billet Aluminum Spacer Kit
1/2" Billet Spacer, 2 of our Exclusive Lifetime 3/16" Aramid Fiber Gaskets
and Stud Kit (Not Shown)
All our Spacers, Gaskets and Hardware are Made In The USA
541-942-5920