Large rpm drop
Power valve was a known good one, ruling out a blown/bad power valve.
I'm running around that timing to keep from detonating on pump gas. I put this setup together last June, blew head gasket early July running ~34* total timing.
After that, milled the heads 0.010" to flatten, kept total timing 30* to play it safe. Initially assembled the engine with the rings on the tight side of kb's spec, butted rings in October and that's when I rebuilt it to how it is now. Detonation may have been a contributing factor to that as well. But idle always been an issue however no matter what iteration of the engine I was on.
Aluminum heads would probably help with detonation and will probably be used down the road if I can find a good deal, but for now closed chambered irons are what I have.
And this is a thread on getting idle adjustment right so let's save WOT for a later date.
Power valve was a known good one, ruling out a blown/bad power valve.
I'm running around that timing to keep from detonating on pump gas. I put this setup together last June, blew head gasket early July running ~34* total timing.
After that, milled the heads 0.010" to flatten, kept total timing 30* to play it safe. Initially assembled the engine with the rings on the tight side of kb's spec, butted rings in October and that's when I rebuilt it to how it is now. Detonation may have been a contributing factor to that as well. But idle always been an issue however no matter what iteration of the engine I was on.
Aluminum heads would probably help with detonation and will probably be used down the road if I can find a good deal, but for now closed chambered irons are what I have.
And this is a thread on getting idle adjustment right so let's save WOT for a later date.