Since seeing Rob's thread on his plenum it's gave me the itch to start sourcing parts for the 240 first off tho I understand you need to get the volume of the chamber to the same or above the ltr of the engine? and runners regarding length I've searched the net but not come up with any decent info or at least any in layman's terms just a shot are sweet answer.
The ltr of the engine is 2.3 looking at other plenums people just seem to make them to any size some 2ltr engines have huge chambers then others like cosworth tiny ones.
Any Info would be much appreciated