EVIL ENERGY Carburetor Fuel Pressure Regulator Kit 4.5-9 PSI with NBR Rubber / PTFE Fuel Line 20FT

About this item

Carbureted engines flood when pressure is too high and lean out when it is too low. The EVIL ENERGY Carburetor Fuel Pressure Regulator Kit ends the guesswork with an adjustable 4.5–9 PSI range. Each bundle pairs the regulator with a 20 FT fuel line already matched to its outlets — NBR rubber hose for gasoline and diesel, or PTFE braided hose for E85 and high-pressure builds. Both ship complete: gauge, bracket, fittings and clamps, nothing else to source.

Fitment

Fits low-pressure carbureted fuel systems with a mechanical or low-pressure electric pump:

• Classic muscle cars & hot rods — 4-barrel V8 engines
• Motorcycles, ATVs & small engines — generators, pumps, industrial engines
• Custom carbureted builds — any setup needing pressure dialed to the carburetor spec

Not for EFI / fuel injection. Running E85 or alcohol? Choose the PTFE variant — the NBR hose is not rated for it.

Key Features

• PICK YOUR HOSE BY FUEL — NBR variant: 3/8 in (6AN) push-lock rubber hose, 750/1450 PSI, -4–212°F — gasoline & diesel only. PTFE variant: 6AN braided hose, 1500/4500 PSI, -76–446°F — rated for E85, alcohol and high-heat.
• 6061-T6 ALUMINUM BODY: one 1/8 in NPT gauge port + two 3/8 in NPT feed / return ports; non-vacuum design holds steady pressure across the RPM range.
• COMPLETE KIT, NO EXTRAS: regulator, gauge, bracket, port plug, outlet fittings (barb or 6AN), Allen key, sealant tape and screws; hose includes clamps or AN hose ends.
• CARBURETOR ONLY: built for low-pressure carbureted systems (muscle cars, hot rods, motorcycles, generators); not an EFI regulator.

NBR Rubber vs PTFE: Which Variant Do You Need?

The two variants are not interchangeable — your fuel decides:

• NBR rubber — gasoline / diesel, lowest cost, push-lock + clamps, flexible routing. Sold separately here. Not for E85.

• PTFE braided — E85, alcohol, max pressure & heat headroom; rigid hose with 0°/45°/90°/180° AN ends. Full PTFE range here.

Barb vs AN: Why the Two Variants Use Different Outlets

Barb and AN solve different jobs, and mixing them is the #1 install failure. A barb + clamp seals soft push-lock rubber hose; an AN 37° flare seals rigid braided PTFE metal-to-metal — no clamp seals braid, and a barb in PTFE always leaks. That is why each bundle is a fixed pair: NBR ships 3/8 NPT→barb adapters, PTFE ships 3/8 NPT→6AN. The 3/8 NPT port plug blocks the second feed port if you need one outlet.

Package Contents

• NBR Rubber Variant: 1 × Regulator (3/8 NPT→barb, non-vacuum) · 4.5–9 PSI gauge · bracket · port plug · Allen key + tape · screws · 20 FT 3/8 in (6AN) NBR hose · 10 clamps
• PTFE Braided Variant: 1 × Regulator (3/8 NPT→6AN, non-vacuum) · 4.5–9 PSI gauge · bracket · port plug · Allen key + tape · screws · 20 FT 6AN PTFE line with 0°/45°/90°/180° AN ends

Brand Summary

Return Reasons

1. Quality Issues: Provide photos/videos; we cover return shipping.
2. Wrong Item Ordered: Buyer covers return shipping; email within 30 days.
3. Change of Mind: Buyer covers return shipping; email within 30 days.
4. Shipping Damage: Inspect packages; do not sign for damaged items.
5. Incorrect Item Shipped: Contact within 7 days.

Price Protection Policy

Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.

Disclaimer

EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.

If you need further information or assistance, feel free to ask!