Intro to a port job
Okay, sorry for the delay. I've popped 2 intake valves 'cyl 2 & 4 or 3 & 5' which ever bank they end up on ..and here are the numbers.
Cylinder 2. & Cylinder 4.
.100--65--------64
.200--130------129
.300--188.7---188
.400--238------237
.500--261------261
.530--264------262
Close numbers, port to port. Consistency is winning. So the valve job did 3 things, helped .200 & .500 lift flow as much as 5 cfm, increased air speed 'had to turn the volume up on the common/straight side on port on the right...and yet, showed there is still some room. As for comparing, I'll have all the port numbers up when this is all said and done so you can get the big picture. EDIT-The numbers on the left are of the port pictured in post #142 a few up from this in case you wondered what that looks like. Here are some other pics.
Side note
These are the valves I recommend using.
2.02
Engine Pro 01-2003-100 SBC Chevy Stainless Intake Valve 2.02 X 5.01 X 11/32 Stem | eBay
1.60
SBC 1.6" Dia 5.010" Nitro Black Perf Exh Valves Small Block Chevy 01-3001+100 | eBay