I'm RICH!!!!!! Options

[jtf914]

Alright I lied, I’m not rich, but my 2.0 E spec 6 is doing pretty well for itself. I’m running out of ideas, and I’ve wasted a lot of time/money trying to figure this out (IMG:style_emoticons/default/headbang.gif) , and I'd rather be driving.

The car runs great, pulls strong, the idle is solid, and no popping once it is warmed up, but I have to run the mixture screws out around 4 – 4 ½ turns to keep the engine running consistent. I’ve used PMO’s tuning instructions as well as Wayne’s, and every variation I have heard from others. Here’s the engine specs:

Original 914-6 engine rebuilt to E specs
Mechanical Advance Bosch Dist
Crane xr700 optical ignition
New coil, wires, NGK BP5ES plugs
Webers – 55 idles, 120 mains, 30mm venturies, 170 air correction, F1 emulsion tubes

The webers have been cleaned/rebuilt many times, pump volumes set at .6cc’s, float level set with the proper tool while the engine was idling. Carbs balanced at 1200/3000. Fuel regulator/guage showing constant 3.5lbs of pressure. I’ve tried 60 idles, but didn’t really help, and PMO said there was no reason I shouldn’t be able to run 55’s, and said my jetting was adequate for a 2.0E.

Valves adjusted, and the timing is set at 35 deg full advance at 6000rpm.

The problem when I lean it out:
The engine will idle when the mixture screws are 2 ½ turns out, but I get lean pop out the intakes, and once I rev the engine, it will not return to idle, it will just hang around 1800 – 2000. Once I get around 3 – 3 ½ turns and hit the throttle it will slowly return to idle, and at 4 – 4 ½ turns the throttle response becomes crisp.

What do I try next??? Has anyone else ever had this problem??

Thanks,
Justin (IMG:style_emoticons/default/beerchug.gif)