Product Summary

  • Made from lightweight, yet durable billet aluminum
  • Comes calibrated for race applications and features changeable idle feed restriction and four emulsions for aggressive tuning
  • Manufactured to take your take your carbs out of the 1950's
  • The block can be used on both primary and secondary of double pumper carburetors
  • Comes with all the necessary screw in idle jets (idle feed restrictors)
See more details

Key Specs

MFG. Part #58667150
BrandSpeedway Motors
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 58667150 Details

Is your carburetor still using 1950's technology? Upgrade it for serious performance using these billet aluminum metering blocks.

586-67150 is calibrated for race applications and features changeable idle feed restriction and four emulsions for aggressive tuning.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 58667150 Specifications

KEY SPECS
MFG. Part #58667150
BrandSpeedway Motors
GENERAL
Sold in QuantityEach

Ratings & Reviews

5

2 Reviews

Overall Assessment

Customers highly value our product for its confirmed qualities and features. In particular, it has been described as a significant upgrade for Holley carburetors. Users have noted that it enhanced fine tuning abilities, particularly with 4412 models. Customers regard it as a practical and dependable component. The prompt arrival of our durable, quality-made product has also been commended. Its superiority over competitors is evident in its proven ability to deliver remarkable improvement in carburetor performance.

5

2 reviews

5

2

4

0

3

0

2

0

1

0

Filter by Ratings

Good Upgrade For Holley Carburetors

5.0

7 years ago

Neil

Tucson, AZ

Verified

Converted an 850 Holley double pumper to these metering blocks.

Would Recommend

Made a huge difference on fine tuning my 4412

5.0

8 years ago

Lordofwrencehes

Kalamazoo Mi.

Verified

Good piece came on time actually ahead of the original ship date

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

12 Questions • 11 Answers

Are these used on primary and secondary?

by Ron

• 8 years ago

1 answer

Does this have replaceable screw in idle jets

by Ron

• 8 years ago

2 answers

Does this metering block have adjustable PVCR's ?

by JB

• 9 years ago

1 answer

will this block work for E85

by 2MRacing

• 9 years ago

1 answer

Where can I get jets for emulsion holes? Don't see in catalog.

by DP

• 10 years ago

1 answer

is this metering block legal in imca northern sport mod class?

by Bwg

• 10 years ago

1 answer

Will it work on Alcohal?

by Dana

• 10 years ago

1 answer

what size ifrs does this come with

by Scotty

• 11 years ago

1 answer

Are these blocks IMCA stock car legal?

by Tim45

• 12 years ago

1 answer

Could you advise if this metering block comes with jets for the emulsion holes

by

• 15 years ago

1 answer

Load More Questions

10 of 12 questions shown

Customer Impersonation Script