L83 TO L86 INTAKE, THROTTLE BODY OPTIONS

[Doubeleive]

How did you manually clean the intake valves, what did you use ?

I usually see people doing it with walnut shells and a home made blaster tool with a air compressor, takes time to do it a mechanic is going to charge a arm and a leg

 

[Walkerfever]

How did you manually clean the intake valves, what did you use ?

I don't know what the Op did, but I used walnut blasting and had similar results. My intake valves were much worse than his.