This.....
Not sure how - if the gas came in from the left via the red arrow, how it could ever pass to blue? It would be more realistic if the red arrow was in the right and the gas flow from the right, then when the chamber was full, passed to the next chamber via the blue? My confusion is over how the holes that were suggested for drilling really change anything. To me its looks like the gas can only leave via the mustard arrow after being in the end chamber, and that the gas never really 'lives' in the middle chamber where the mod is proposed? Its not a big deal just interested. I have been viewing this sight everyday for about 6 months but never registered until today. I'm just a curious guy with a love for cars