Yep, I agree. That'll be my next test. Everything so far has checked out, just verified that my spark looks good all around. I've never been so upset that so many things are working properly.desertrefugee wrote: ↑Mon Nov 02, 2020 8:20 pm You really do need to run an external fuel IV bottle. An old lawnmower tank would work just fine. If necessary, go to your local auto parts store and get the appropriate fuel line to mate the two, but there’s not much to it. Just hang it up several feet higher than the carburetors and you will know in about 20 seconds whether you have a fuel delivery problem or not.
Then, as suggested above, a flow test would be reasonable from the fuel pump. It is meticulously described in the factory service manual. Less perfectly in various aftermarket manuals, but close enough.
I got it to idle pretty easily tonight and got excited thinking it was solved by my ignition timing tweaks. Hopped on and didn't even make it down the street The thing stalls under pretty much any load which I didn't know until tonight.