318 head flow

Do enough work with flow benches and you will see that different brands and even models from the same company don't agree. They are like home made yard sticks. SuperFlo will tell you that. I'm sure your bench gives you repeatable results, but I guarantee it won't match up to the SF1020 bench I use.

This is all very interesting, though it makes me want to ask the question ( hypothetical )........would a SF1020 in Key West Florida yield the same results as your bench in Washington, state?? Does the software have auto correction factors for elevation, relative humidity, temperature, barometric pressure, to some given SAE standard, or do you just see raw data and then make the long hand corrections?

I ask/say this as I beleave that in the long run flow bench numbers are just food for thought, I do not hold them to be absolutes, reguardless of who's/kind of bench, they are all just "yardstick measures". I came to this conclusion over 30 years ago after studying Fluid Dynamics in collage ( B+/A- don't remember for sure).

Port your heads, do what you think is best, don't pucker your azz over what another bench says; who cares!! Your time slip showing your ported iron heads is impressive, car is well sorted.