Idleing problems with My silver top 4age 20v

[JusJas]

Hey Guys I Need some help, I recently cleaned the intake system because i was experiencing some idleing problems but now it has gotten worst, i changed the idle control valve cleaned then plugs, but it still idles with a miss and very low, when placed in drive and brake is mashed it idles down and stalls even when the AC is on, while ideling it sounds something like the subaru boxer engine . could anyone give some advice

[yoshimitsuspeed]

Pull spark plug no1 and see how much idle drops. Put it back on and pull no 2 and see how much idle drops. If idle drops less on some cyls than others then you narrowed your problem down to those cyls. If it drops the same then it's a general problem effecting all cyls. This is a good place to start.

[HASport AE86]

Has this been a problem ever since you installed the engine and now is getting worse?
Did you make any recent repairs other than what you mentioned?
Do you have the vacuum hoses routed properly?