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Billet Race Calibrated Carburetor Metering Block

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Billet Race Calibrated Carburetor Metering Block

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Q & A (9)

What's in the Box

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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.

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Product Q&A

9 questions : 9 answers

1 answers

Are these blocks IMCA stock car legal?

Tim45
September 24, 2014

Are these blocks IMCA stock car legal?

Answers

September 25, 2014
EricM
No this metering block is not legal for IMCA Stock Car. You must run the stock Holley metering block in that class.
1 answers

Can this metering block be used for a 4412 2 barrel?

Tim
Central California
March 16, 2011

Can this metering block be used for a 4412 2 barrel?

Answers

March 21, 2011
Jason
Yes, this will work with a 4412 carb.
1 answers

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

October 02, 2011

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

Answers

October 03, 2011
Mike
Yes they do, they have to plugs in the center, two drilled jets at top and two drilled jets at the bottom for the circuits.
1 answers

what are the advantages of the 4 emulsion ports

kent
lufkin texas
July 02, 2011

what are the advantages of the 4 emulsion ports

Answers

July 06, 2011
Mike
This is a HP style metering block for Gas only; the 4 emulsion jets give it a 4 corner idle circuit that in race applications feeds more fuel for better racing response.
1 answers

what size ifrs does this come with

Scotty
Sherkston Ont
August 03, 2015

what size ifrs does this come with

Answers

August 04, 2015
Eric
Expert
The IFR is .033". Also the PVCR is .055" and all four emulsion orifices are .027" The brass plug in emulsion position 3 (counting from top to bottom) can be removed if needed and there is a .027" orifice underneath it.
1 answers

Will it work on Alcohal?

Dana
Concord, CA
November 24, 2015

Will it work on Alcohal?

Answers

November 24, 2015
Eric
Expert
No this metering block is calibrated for use with gasoline fuel only. It would require extensive modification such as machine work, etc. to use it for alcohol fuel.
1 answers

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

Bwg
ut
June 03, 2016

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

Answers

June 03, 2016
Eric
Expert
This metering block is legal for use on the crate engine option with a 4 barrel carburetor for an IMCA Northern Sport Mod. This metering block is not legal for use on a clam engine in that class with a two barrel carburetor.
1 answers

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

DP
September 09, 2016

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

Answers

September 16, 2016
Austin
Expert
We show our emulsion bleed kit part #42536322, or we also offer single emulsion jets like part #42514200.
1 answers

will this block work for E85

2MRacing
marshall, Tx
October 18, 2016

will this block work for E85

Answers

October 19, 2016
Eric
Expert
No this metering block is for gasoline only. Modification to the metering block would be needed to used E85 fuel. We do not suggest you modify the block for E85 unless you are extremely familiar with the process and have performed those modifications before.
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