Sry I didnt post the fuel ball parks
idle looking at low to mid 15s AFR.. thu with that combo high 14s maybe the best stable idle u will get
Cruise, same as idle.. which with the combo should improve as the rpms get higher.. faster
Power low 12s to 13s max... mid 11s acceptable
That doesnt make sence
I'm sorry but that is incorrect. Shape and weight of the counterweights control how fast the advance comes on. Has nothing to do with the amount of mechanical.
...HEIs are sold off the shelf for EGR engines with small cent degs lot of VA..which means the need MORE degrees and all u describe is reducing????
So how do u increase the cent degrees?
I started with needing to mod an Aussie Holden dizzie back in the 70s before internet...using the dizzie calibration machine it was not clear what stopped the advance .. I messed with moding rotors , all sorts of stuff, til when i started changing counterweight of different profiles... different tail shapes....
Up to that piont most of my mods where on British/ European stuff.. all had their own methods...
Since then . IF U BOTHER to do any research, some Dodge guys in resent years have played with similar results.. except they used different anvils, and change the anvil shape, which works just as well....I prefer the counterweight because easier access and far more similar and more accurate in proportion of changing the shape than modding the anvil
I have spent over 40 yrs doing this a for petrol LPG , cng, British pool fuels , pre war unleaded and post war leaded, and engine technology going back to 1912
All hands on experiance, like John (independently with similar results, sometimes different approaches to a common result)
BTW, not too many guys with performance running EGR so you should probably stop mentioning that when a guy is talking non-stock engine.
most prberly because as I have often mentioned, and wil do so again since u miss the piont... HEIs off the shelf have small cent , big Va for EGR engines, and as u say most guys have non EGR engines... I consider this basic information essential , espec when we get marketing propaganda BS saying " Ready to run..."
No new dizzie in an engine is Ready to run.. it has to be recurve to THAT engine to get enough advance for the flame to max cylinder pressure at a GIVEN deg
ATDC between 12 and 18 degs for a given load and rpm