Originally Posted by bubbahotep
That carb seems ok to me assuming its the vac secondary it'll size itself accordingly
Your sure that timing light is any good with the MSD? Used it before on any msd systems? Some lights cant read multispark correctly
At 20' (for example) timing what exactly happens? Does it just stall out, sputter, or rpm drops?
The rough idle and fouled plugs you describe sounds like a carb or spark issues. At 60' timing what are your rpms at idle? It sounds a little like your using the timing to compensate for bad fuel mixture or even a dead spark on a cylinder.
At 60* it idles roughly at 1300
I used my digital light with this MSD before and it worked fine. I thought the gun could be wrong after I relocated the battery so I bought the cheap one and got the same reading.
Is it possible to compensate bad mix with advanced timing?
20* is a no go. Once I get below 40 the rpm starts dropping, it starts shuddering and dies.
I was thinking weak spark but I didn't think the MSD could "do" weak spark.