1405 lean at WOT

Aaron65 said
It looks like you should be aiming for the lower right quadrant of the tuning graph, not the lower left; my experience with Edelbrocks is that changing the secondary jets is for fine tuning. It looks like you may want to study #23 and #26 on the graph; they SHOULD lean out cruise and richen up the power circuit. By going to #24, you leaned out the power circuit. Also remember that you shouldn't be aiming for a specific number on your wideband; give the engine what it wants. All engines are different; use the wideband to make sure you're in the ballpark. Obviously, you're a little out of the ballpark right now, but you'll get there.

Awesome :thankyou:

So the primary (ha) source of fuel at wot is the power circuit, with the rods up. That makes sense that when I went to #24, wot got a little leaner.

At one point in my testing I ended up at #15 on the 1406 chart (which gave 14ish afr at cruise). Going right to #17, it's really close to #26 (on 1405). I may try #18 (1406) since I have those rods & jets already, and don't have the rods for 23 or 26 (yet).

fklskv said
:steering:So it ran good for ten years and then you decided to fix it?!

I'm a glutton for punishment :BangHead: It's been that long since the rebuild, but I changed several other things along the way (electronic ignition, timing curve). I wanted to lean out the cruise a little, and the wot got worse. Huh? :realcrazy: Now I know why.