Righto guys, need your help again.
Two issues I'm dealing with and I'm not sure if they are interelated.
Firstly the distributor. Just back from being rebuilt and I had a Pertronix installed as well. But I just can't seem to be able to line it up so that I can set the nut in the middle of the slot and get the timing where I need it. Its always at the far end of the slot with the timing on the right spot. Is it possible that the Pertronix is positioned incorrectly altering the timing? I must have pulled the dizzy twenty times today, and moved it notch by notch and its still at the far end of the slot........
The other issue is that I'm trying to tune my newly rebuilt carbs which are Weber 40 IDTP 13C's running 32mm Venturis, 135 mains, 180 air corrctors, 60 idles and F7 emulsion tubes (very close to F3's according to PMO)
The car pulls really well througout the rev range and is a vast improvement on the previous set up but the idle is doing weird things. Setting it at 900, its climbing by itself up to around 1800rpm seemingly at random. It will stay there for a while (minute/s) and then drop back (usually). Its making it bloody hard to tune...
I have set the timing to about 5 degrees advance, checked the manifold & carby nuts for tightness, and used new gaskets all round. All throats are balanced and drawing the same air. I did notice one of the idle air screws seemed to have a slightly bent tip but not by much. Could this be the issue?
Any help would be greatly appreciated, as I am slowly driving myself insane!
Thanks