M20 revs down then a little up when gassing it

[Sagaris]

My opinion is that these types of small things are given up on or never considered by some people that jump to M50 swaps. Once you get the M20 running properly it gives great performance.

[SpecM]

I'm with Jim here, it has to be intake leaks

[matias88e30]

Spray some carb/brake cleaner in each single hose.. if it revs up while doin it it means u have a vaccum leak. hope it helps u.

[matias88e30]

spray some brake/carb cleaner, if it revs up where u sprayd it, it mean u have a leak, also check the little hose its under the trhottle body

[Eydreeyun]

I already did it with carb cleaner. Idle stays fine. After driving with the new afm. It felt smoother. Im changing the spark plugs tomorrow, they look worn when I checked them earlier. What plugs do you guys use? What brand and model? I dont need fancy ones. Thanks for the input guys appreciate it =)

[u3b3rg33k]

W8LCR. Last time I bought them locally they cost me $12 for the whole set.

[bernzpeed]

Icv.

[Eydreeyun]

Icv.

Couldnt be, Its not an idle problem. more of like power problem. It runs smooth now since I changed the AFM.