193cfm, WOW! Almost 25% increase from a stock non-SVT manifold. Not shabby at all!!

Quote:

Awhile back I got some approx CFU rates from Extrude Hone..
stock = 155 CFU
single= 170 CFU
double= 180 CFU
triple= 188-190 CFU


Must be that jumbly-wumbly thing happening again.