1972 P6 V8 - The Lush

Which actually will help @Baron von Marlon situation. If he had to make it rich at idle to get decent performance under load he wants a profile the enriches off idle and allows correct mixture at idle. Best options to test it are either a rolling road or a wide band O2 sensor in the downpipe.
 
Chalky said:
BAF are richer than BBW. Needles are the same at idle.
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That's interesting as the site I'm using, which purports to use the same data, says different:
SU.PNG
I've included BBV and BBG for reference as one of those is what I had fitted originally, both of those being quoted as the stock needle, but I've no way of telling which.

Given that all of the needles are the same diameter to station 2, and quite similar to station 4, presumably this is what affects idle. From then on, BBW is of a slightly smaller diameter than BAF until station 6, where the divergance increases.
 
sdibbers said:
Which actually will help @Baron von Marlon situation. If he had to make it rich at idle to get decent performance under load he wants a profile the enriches off idle and allows correct mixture at idle. Best options to test it are either a rolling road or a wide band O2 sensor in the downpipe.
Click to expand...
Yep, I think the O2 sensor is the way forward. I want to go injection at some point in the future, so will need it at that point anyway.
 
I fitted a Wide Band one to Sparky as I couldn't get the weber just right. Gave up in the end and went to Fuel Injection. It is very useful when tuning the EFI.
 
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