KULTULZ
Well-known member
4100s with 1.12 venturis are not 600 cfm. They are low 500s. From about 506 to 528 as I remember. The only 600 cfm 4100 is marked with 1.19 venturis and is very rare. The 1.08 is about 441 cfm and was used on the 289s, etc
... uh ...
Where did I say it was?