Its not pouring through, but you can see it running through the hose very clearly.
Also, I couldnt see any chamfer, all the throttle plates are facing the same way.
new filter didnt fix, but a new rotor did - the old one had partly cracked the plastic lug which positions the thing on the distibutor shaft, therfore allowing ~5deg of movement. Any ideas as to how this happens?
But lo and behold, we have more dramas. Since putting the new rotor in, I took it for a 2 min drive, then parked it. Work took over and I didnt get a chance to check the mixtures, until yesterday. Oldjohnno's tuning method (from brendan_h's thread) and the tuning method in my SU book, tell me its running lean (engine stumbles when the piston it lifted 1.5-2mm). The black smoke from the exhaust, and the smell of the exhuast tell me its running rich. And it backfires through the exhaust (followed by large puffs of black smoke) on overrun (in gear), or when you floor it then take your foot off (in neutral, when parked).
Do you have an aftermarket rocker cover? If so I'd try a stocker to see if it helps to stop so much oil getting to the pcv. If you already have a stocker you might have to get creative and see if you can improve the baffling. A rough but effective design is a small upturned canister attached to the top of the rocker cover (imagine something the size of half a soup tin with the closed end on top) the floor of the canister (top of the rocker box) should have 20 or so 4mm or 5mm holes drilled in it like a salt shaker. Pack the canister with stainless scouring pads and stick the pcv in the top.
Plastic bits like rotors and caps crack eventually through sheer old age. Make sure the ignition (leads, plugs etc) is 100% - it's pointless trying to tune it if there is any dodginess in the spark department. A bit extra static advance will probably help response, especially if the engines a bit tired. Try 12 - 14 static and 30 odd total.
Be careful not to lift the slide too far - if you do it will always give the indication of being lean. Try it again lifting the slide no more than 1mm. If it's blowing black smoke it's seriously rich. If it turns out that the mixture is fine at certain speeds but not at others you may need different needles, though I'd expect the supplier would have given you something pretty close. At any rate if it's smoking and popping it's grossly out of tune and will go much better once it's adjusted.
Is the butterfly sticky with the carb off? If so you'll just have find out whats bent or misaligned and fix it. If it's free when it's off the car but binds when you bolt it up check that the flanges are flat and not causing the throttle housing to distort when you bolt it up.
