Shop
MEFI 3 Replacement to Holley Programmable ECU
MEFI 3 Replacement to Holley Programmable ECU$2,695.00Add to cart
MEFI 3 Replacement to Holley Programmable ECU
MEFI 3 Replacement to Holley Programmable ECUMercruiser Short Runner Manifold Conversion
Mercruiser Short Runner Manifold Conversion$950.00Add to cart
Mercruiser Short Runner Manifold Conversion
Mercruiser Short Runner Manifold Conversion**Available on exchange basis**
Arizona Speed and Marine’s “Short Runner” Extrude Honed intake manifold is essential when extracting the most HP and Torque out of your MPI or Magnum EFI engine. First, the manifolds are precision CNC machined to unshroud the intake runners and shape the inlet. The manifolds are then Extrude Honed to further increase airflow. The reduction in overall runner length extends the RPM range of the engine, for increased HP and Torque. These manifolds are available on an exchange basis.
Mercury 500 HP Polished Billet Flame Arrestor
Mercury 500 HP Polished Billet Flame Arrestor$395.00Add to cart
Mercury 500 HP Polished Billet Flame Arrestor
Mercury 500 HP Polished Billet Flame ArrestorMercury Marine Adjustable Fuel Pressure Regulator Kit
Mercury Marine Adjustable Fuel Pressure Regulator Kit$85.00Add to cart
Mercury Marine Adjustable Fuel Pressure Regulator Kit
Mercury Marine Adjustable Fuel Pressure Regulator KitArizona Speed and Marine developed this fuel pressure regulator kit to allow you modify your fuel pressure. Utilizing your OEM regulator you can now modify it so it becomes adjustable. Adjustments can be made to increase or decrease the amount of fuel your engine needs for best performance.
NTK WIDEBAND OXYGEN SENSOR PART# 554-100
NTK WIDEBAND OXYGEN SENSOR PART# 554-100$318.95Add to cart
NTK WIDEBAND OXYGEN SENSOR PART# 554-100
NTK WIDEBAND OXYGEN SENSOR PART# 554-100Replacement Holley EFI NTK Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system. Also compatible with 2nd Gen C950 or Holley EFI. Replaces Part # 534-194
Optional Polishing for BB TPI
Optional Polishing for BB TPI$850.00Add to cart
Optional Polishing for BB TPI
Optional Polishing for BB TPIPART# 554-101 Bosch Wideband Sensor
PART# 554-101 Bosch Wideband Sensor$194.95Add to cart
PART# 554-101 Bosch Wideband Sensor
PART# 554-101 Bosch Wideband SensorReplacement Holley EFI, Bosch Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system.
Ramjet 5.7L crate engine Fuel Pressure Regulator Kit
Ramjet 5.7L crate engine Fuel Pressure Regulator Kit$105.00Add to cart
Ramjet 5.7L crate engine Fuel Pressure Regulator Kit
Ramjet 5.7L crate engine Fuel Pressure Regulator KitRamjet 58 MM Throttle Valve
Ramjet 58 MM Throttle Valve$495.00Add to cart
Ramjet 58 MM Throttle Valve
Ramjet 58 MM Throttle ValveOur billet throttle valve will provide significant increase in air flow. We start with a solid block of 6061 billet aluminum and CNC machine it to precise tolerances. The shaft rides on oilite bronze bushings for smooth operation. Your stock IAC and TPS installs back to the original location, larger gasket is included. C.A.R.B Exempt under Executive Order 301-D-1
Ramjet ECU Upgrade for 350/502 crate engines
Ramjet ECU Upgrade for 350/502 crate engines$395.00Add to cart
Ramjet ECU Upgrade for 350/502 crate engines
Ramjet ECU Upgrade for 350/502 crate enginesMEFI 3 equipped models had no O2 sensor feed back for closed loop operation or air temperature compenstaion. These engines ran very rich, fuel fouling spark plugs and as a result poor fuel economy.
ASM offers calibration of the ECU to correct overly rich running condition on MEFI 3 ECU’s and toggle on these features, and provide the O2 sensor upgrade.
Rochester EFI Conversion
Rochester EFI ConversionRochester EFI Conversion
Rochester EFI ConversionSuperjet / Rochester EFI Fuel Injection System
Superjet / Rochester EFI Fuel Injection System$1,650.00Add to cart