FBO-UK
Carburetor Accessories
Cone Style Plenum Divider Carburetor Spacers Direct Air Flow into the Runner, Helps Control Reversion and Builds More Tork and HP.
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 many street 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, reduce tork and cause a rich stinky idle.
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 | £219.00 |
| WH5x1.5 | .500 | Spacer Only | £195.00 |
| FBO4H | .875 | 4 hole Spacer kit W/2-3/16 gaskets and long stud kit | £102.00 |
| DB Air Cleaner | -1.75" | Drop Base Air Cleaner 2-3-4" elements available | From £115.00 |
FBO4H 1/2" Billet Aluminum Spacer Kit
1/2" Billet Spacer, 2 of our Exclusive Lifetime 3/16" Thick Aramid Fiber Gaskets
and Stud Kit (Not Shown)
Our stud kits are Made in America with accurately cut threads, Nylock nuts and SAE small diameter .100 washers all chromate coated.
All our Spacers, Gaskets and Hardware are ALL Made In The USA £102.00
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Throttle Brackets Fully adjustable return spring tension and cable location. Specify GM Mopar, Morse or Ford cable. Available in Black only. Clear and Blue are special order |
£119.00 |
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Fuel Delivery Connect it Right! Dual feed kit shown with Fuel Delivery line.
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Duel Feed Kit £69.00
Fuel delivery Line kit £129.00
Both with Throttle Linkage Kit £312.00
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