5.0L MPI Idle Air Control Valve OEM vs Aftermarket

[Lou C]

Old school carb means no proprietary parts that can be made NLA like what happens with engine ECMs and ignition modules. It’s all the in the aftermarket with carbs no matter what your preference is due to the huge collectible car and hot rod aftermarket. Quadrajet, Holley or Edelbrock take your choice. Yes MPI runs better than carbs when cold but when they act up repairs are more complex and expensive. $50 + 2hrs of my time rebuilds the 4 bbl Quadrajet and mechanical fuel pumps last 30 years and can be replaced for less than 100 bucks. To each their own....

 

[RaceCarRich]

It helps to keep the flame arrestor clean. I spray mine with brake cleaner every off season

First time I tried that on my MPI the brake cleaner started melting the PLASTIC flame arrestor top.

 

[RaceCarRich]

PITA to fog though. Remote tank. What a mess.

My mechanic would make up the recommended witch’s brew and then after seasonal change of the fuel filters he would fill the filter housing with the mixture and then briefly run the motor to accomplish fogging. I plan on doing this same process myself this end of season. Guessing I’ll see a little exhaust smoke then shut it down.