[lemans24]

On my 48 IDA's, 2 lbs of fuel pressure, phenolic adapters. 38 degrees full advance on the timing. sync the carbs first then adjust the a/f mixture.

very important... fire suppression system. I use a 5 lb Safecraft halon bottle

It seems like alot of weber guys have issues with boiling gas, maybe newer gas boils at a lower temp, I turn the fuel pump off a minute or so before turning off the engine. That seems to help. I run mine without air filters. but have to be aware of low flying birds and small deer lolol. I'm getting about 7 mpg. nothing sounds as good as a big block with webers when its winding out.
Have fun.