[Formula911]

I've got a bone stock 77 S with 2.7 CIS.

Ignition timing is set to dynamic 32* with vac line to the dizzy plugged and the retard port capped (IT falls around 6*BTDC @ idle). Idle speed is set to 950ish warm.

System pressure is 68psi
Warm control pressure is 52psi
Cold control pressure is 40psi (85*F ambient, summertime) and appears to fall into the graph path for spec.

AAR has been "opened" to 3/4 opening "COLD" (again, 85*F). It was open only a "crescent" 1/4 of the port, but since my problem, I thought, was associated with the AAR not allowing enough additional air, I adjusted the small plug to get the larger opening. AAR gets just under 12v with FP relay energized. It has 27 ohms resistance and will still FULLY close up in around 5 mins.

I get steady 18.5psi engine vacuum (pulled from vac line to top of the pear (decel valve) via a "T") with a warm engine at idle. Doesn't indicate a vacuum leak...?

The problem I'm having is there is no fast idle associated with a cold engine start. It starts on first ignition (assumes a good CSV and the AAV is assisting with air augmentation for initial start), however, the idle speed remains low, say around 550-650rpm, and will, after 3-4 mins, rise to around 900-950 (warm curb idle speed). There is no popping, backfiring, etc associated with the cold start. Neither is there any idle hunting during this warmup.

Idle mixture is set WITHOUT a gas analyzer, but rather using the turns to rich-lean-middle with 1/16 towards rich.

Warm performance/idle is really nice and strong.

Has new fuel pump w/ internal ck valve. New accumulator and supply and return fuel lines. Tank is flushed and clean with new 93 octance fuel. New plugs, valve adjustment, dizzy and fuel distributor.

WUR has adjustability and have tried lowering the CCP and it will NOT run if I go lower than 34 psi.

Sorry for the lengthy essay, but I wanted to provide as much pertinent info as possible. If you can add any direction it would be greatly appreciated.

JP