318 head porting for the average joe
Did you actually lose flow @ .400 or is that a typo?
good catch, i was fried yesterday and read the wrong line @ lift.
So here are the numbers for comparison
---stock as cast----smoothed bowl casting/angles-----guide slim/reshape
.100---46----------------------59.8----------------------------60
.200---108.6------------------113.6---------------------------120
.300---158--------------------163.4---------------------------168.6
.400---169--------------------169.4---------------------------170.3
.500---171.7------------------174.9---------------------------179.4
.550---173--------------------177.3---------------------------181.3
.600---175--------------------178-----------------------------182.2
------\/176--------------------179-----------------------------183.4
