holley jet kit
Worth a lookShows a thin review moat (42 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Review moat
Incredible41.59avg incumbent reviews — the moat a new listing must climb
Avg price
Incredible$33.38avg listing price — sweet spot $15–$100
Price range
Incredible$15.12–$91.58cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.8%return rate — above 5% kills the launch gate
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good6.0%search→purchase rate — share of searches ending in a sale
Growth
Good+38.6%90-day search growth — must beat 0% to launch
Brand share
Good69%top-5 brand share — brands hold most of the demand
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Market size
Bad$64K$64K/yr · 32K searches
According to Flapen's Amazon United States niche tracking, holley jet kit is a $64K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in May–Sep. Verdict: Worth a look — 59/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
holley jet kit market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $50K–$67K
- units × avg price
- Conversion rate
- 6.0%
- Avg BSR
- #2,152
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 71%
- Out of stock
- 1.1%
- Avg brand age
- 29 months
- Avg seller age
- 212 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
12 rising
Sellers
60
Top-5 brand share
69%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
22%
- Holley24%
- AegisAutos14%
- SPARKWHIZ12%
- 2 MULE TEAM10%
- BAYWORD9%
- EZAPEX9%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +38.6% search growth over the last 90 days.Peak months: May, Sep · busiest ÷ quietest = 2.1×
Top holley jet kit search terms
- holley jet kit22K/yr
- holley jets7K/yr
- holley carburetor jets4K/yr
Top holley jet kit products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Holley 36-181 Jet Assortment Kit
Holley$91.584.7★370 rev
36-181 Jet Assortment Kit Carburetor Replacement Jets Compatible with Holley 2010 2300 4010 4011 4150 4160 4500 Carburetors Sizes 64-99 2 Pieces Per Size
SPARKWHIZ$40.684.7★13 rev
36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models
AegisAutos$43.504.0★41 rev
36-181 Main Jet Assortment Kit Replacement for Jet Kits 36-181 Jet Assortment Kit Replacement for Holley 2010 2300 4010 4011 4150 4160 4500 Carburetor #64-99
2 MULE TEAM$30.614.2★12 rev
36-181 Carburetor Main Jet Assortment Kit Compatible With Holley 2010 2300 4010 4011 4150 4160 4500 Models Includes 72 Jets #64-99
EZAPEX$41.603.4★7 rev
Newest
by launch date
20-Pack Carburetor Main Jet Assortment Kit #6069 Compatible with Holley Carburetor 1/4-32 Brass Gas Main Jets Set 2 Each Size for Carburetor Tuning
Beienz$17.438 rev
36-181 Jet Assortment Kit Carburetor Replacement Jets Compatible with Holley 2010 2300 4010 4011 4150 4160 4500 Carburetors Sizes 64-99 2 Pieces Per Size
SPARKWHIZ$40.6813 rev
36-181 Carburetor Main Jet Assortment Kit Compatible With Holley 2010 2300 4010 4011 4150 4160 4500 Models Includes 72 Jets #64-99
EZAPEX$41.607 rev
36-181 Carburetor Jet Kit for Holley 2010 2300 4150 4160 4500 72 Pcs Main Jets #64-99 1/4-32 UNF Thread
Axfvd$39.052 rev
36-181 Jet Assortment Kit Replacement #64-99 for Holley for Holley 2010 2300 4010 4011 4150 4160 4500.Carburetor Carb Jets Kit
Axfvd$39.745 rev
Trending
90-day click momentum
HENKYO Holley 1/4-32 Main Jets kit 20 Jets 2 each of size 70 71 72 73 74 75 76 77 78 79 Thread size: 1/4-32 Fits Holley 2010 2300 4010 4011 4150 4160 4500
HENKYO$15.724.5★
36-181 Jet Assortment Kit Carburetor Replacement Jets Compatible with Holley 2010 2300 4010 4011 4150 4160 4500 Carburetors Sizes 64-99 2 Pieces Per Size
SPARKWHIZ$40.684.7★
36-181 Carburetor Jet Kit for Holley 2010 2300 4150 4160 4500 72 Pcs Main Jets #64-99 1/4-32 UNF Thread
Axfvd$39.054.5★
Holley 1/4-32 Main Jets kit 20 Jets 2 each of size 50 51 52 53 54 55 56 57 58 59 Thread size: 1/4-32 Fits Holley 2010 2300 4010 4011 4150 4160 4500
HENKYO$21.304.9★
Carburetor Metering Main Jet Assortment Kit #70-79 (2 Each of Sizes) Fit for Holley Carb 1/4-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models
AegisAutos$23.454.0★
What buyers say about holley jet kit
What buyers praise and complain about, mined from review topics.What buyers love
“I found each of the jets were quality made”
“but worth it”
“no problems with fitment”
“properly machined for accurate fuel delivery Overall it is a solid tuning kit for anyone working on Holley carbs”
“makes it easy to troubleshoot on the fly”
“work as expected”
“properly machined for accurate fuel delivery”
“good solid product for a good price”
“the storage box is really nice”
“Just what I needed for my rebuild”
What buyers complain about
“Do not fit”
“the description is wrong”
“Does not fit a Rochester Quadrojet Carb”
“Poor quality control”
“My truck has been stalling, chugging and getting very poor gas mileage”
“not good for the environment or wallet”
“the size stampings are slightly hard to read”
“Installation requires removing top of carburetor”
“The bad - I have no idea what numbering convention these use other than possibly simply matching wire gauge drill diameters. which if you use wire gauge drill bits”
Top return reasons
Common questions
- Is holley jet kit profitable to sell on Amazon United States?
- The niche generates $64K/yr across 17 tracked products. 1 of 10 products launched in the last 360 days are still selling. 90-day search growth is +38.6%. Flapen's verdict: Worth a look (59/100).
- How competitive is the holley jet kit niche?
- 12 brands and 60 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in holley jet kit?
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Compatibility-Overall. The return rate is 1.8%.
- When does demand for holley jet kit peak?
- Demand peaks in May–Sep; the busiest month runs 2.1× the quietest.
- What does it cost to enter the holley jet kit niche?
- Listings span $15.12–$91.58; the average listing price is $33.38 (sweet spot $15–$100). The average incumbent carries 42 reviews — the moat a new listing must climb.