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Product Summary

Universal Fit, Capacitive Discharge Ignition Box Output

  • Produces 160 mJ/spark and 47,000 volts
  • Features a built-in two step rev control
  • It operates on 4, 6 or 8-cylinder engines
  • Has a troubleshooting LED for spark output diagnostics
  • Comes with terminal strips for improved and easier wiring

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Key Specs

MFG. Part #7222
BrandMSD
Ignition Box OutputCapacitive Discharge
CircuitryAnalog
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Need To Know

Quick and Easy Returns

Return Policy

MSD 7222 Details

You'll recognize the 7AL-2 Plus Ignition Control, as its predecessor is the most popular ignition control used in drag racing. The "Plus" model updates the original 7AL-2 with improved internal components plus our engineers added a 2-Step Rev Control and a useful diagnostic LED.

Racers will be happy to see that the updated components up the voltage output and spark energy! Over 40% more spark energy in fact!

Visually, you'll notice the two terminal strips that allow for easier wiring in your race car. The LED over the power connections will come in handy for troubleshooting as it flashes only when the coil fires. That way you know that the coil, the trigger source and ignition are all functioning properly. The mounting pattern is the same as the 7AL-2 and is supplied with vibration mounts and a few rpm modules.

  • Built-in two step rev control
  • Operates on 4, 6 or 8-cylinder engines
  • Troubleshooting LED for spark output diagnostics
  • Terminal strips for improved and easier wiring
  • 160 mJ/spark
  • 47,000 Volts
  • 20 degree Crankshaft Rotation
  • 14,000 RPM with 14.4 Volts
  • 12-18 Volts, Negative Ground
  • 6 Amps Per 6,000 RPM; 12 Amps at 12,000 RPM
  • 4.85 lbs.,8.25"L x 3.75"W x 5.75"H

Rebates

Holley Fuel Up Spring Savings Event 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period runs from March 30, 2026 through April 19, 2026.

CARB Warning

For race/ off road use only

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. 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.

MSD 7222 Specifications

KEY SPECS
MFG. Part #7222
BrandMSD
Ignition Box OutputCapacitive Discharge
CircuitryAnalog
GENERAL
Rev Limiter IncludedYes
Data AcquisitionNo
Timing RetardNone
Coil IncludedNo
Primary Voltage570 Volts output to coil
Spark Output160 MJ
Voltage Required12-18 Volts
Current Draw1 amp per 1000 RPM
GTIN Code085132072224
Overall Length8.25"
Overall Width3.75"
Overall Height5.75"
ColorGold
Sold in QuantityEach
NotesNot for use with distributorless ignition systems.

Ratings & Reviews

5

3 Reviews

Overall Assessment

Customers highly recommend our product for its demonstrated quality and effectiveness, particularly in resolving ignition issues. They appreciate its practicality, with its superior usability setting it apart from competitors. Its material quality ensures safety and performance, making it popular among users. Future purchases are considered, underscoring its dependable nature.

5

3 reviews

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yes

5.0

a year ago

Gunner

Nebr

Verified

easy to wire

Would Recommend

Awesome Product

5.0

7 years ago

Earthquake

Sparta, Mo.

Verified

This completely cleaned up an ignition problem I was having. Tons of fire, now.

Would Recommend

I would buy again

5.0

9 years ago

fast one

portland OR

Verified

hope the vw likes it :)

Showing 3 of 3 reviews

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