1979bettywhite wrote:Well, Holley wasn't that helpful, or maybe you would interpret as they were. They said basically the most improvement that can be made is to let the Sniper EFI system control timing. Which means either the Hyperspark system or an MSD distributor and ignition box. I am going to look into the Hyperspark system as that one seems as it may be the way to go. In the meantime I will see what bumping up the initial settings will do to help things.
typical...buy more of our products lol
but yes timing control will improve things.
a system that doesn't control timing is incomplete.
as you are finding out there is no such thing as a self tuning system. all just marketing hype/misleading consumers.
I would bet $ they have it calibrated to e0/gasoline
So 14.7 would be normal like countless other oem systems.
You should be able to safely run there or even slightly above with good results.
WOT and power enrichment/acceleration is generally the only place you need to be richer.
EDIT: I would say Holley for sure has it setup/calibrated to gasoline/E0 from their manual
Target air fuel ratio at idle
Typically between 13.5 and 15.0. Engines with larger cams may
need a richer setting for smoothest idle.
Target air fuel ratio at cruise
Typically between 13.5 and 15.5. Engines with larger cams may
need a richer setting for smoothest operation.
Target air fuel ratio at WOT
Typically between 12.0 and 12.8. Running richer may reduce
power. Running leaner may reduce power or cause potential
engine damage
No way they would be utilizing these instructions in their manual if it was anything else.