Air and Fuel› Carburetors and Components
Holley
134-21 METERING BLOCK
SKU: H00E 134-21
Easy — 1–2 hours
Description
This replacement metering plate is constructed from aluminum and features a 0.081 inch main hole diameter and a 0.040 inch idle hole diameter. It is designed as an exact replacement for your existing carburetor and requires no modifications for installation. A gasket or seal is included with this part.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 134-21 |
| Weight | 0.13 lb |
Videos
4160 Rear Metering Plate Tips & Tricks
Holley carburetor metering block & jets upgrade for more adjustability | #FamilyBurnoutWagon EP18
Holley 4160 Metering Plate Passage Explanation and Tips
HOW TO TUNE A LOW-BUCK, 1850 HOLLEY 600 VACUUM SECONDARY CARB. NOT-SO TOP SECRET 4160 TUNING TRICKS
CONVERTING A HOLLEY 4160 TO A HOLLEY 4150| Holley single feed to dual feed | Holley Carb Secrets |
jetting holley secondaries the right way for more power
Overview Of The Holley 4150 Vacuum Secondary Carburetor
Holley Four-Barrel 4150 and 4160 Carburetors Explained
Holley 4150 Carburetor Rebuild
Who Makes the Best Holley 4160 Carburetor Kit?
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy