Pretty sure info is available here...try a search...thinking 260-180ish was what was reported. Good Luck!
The high lift flow numbers, out of the box and ported, are listed in the TA catalog. The charts showing the flow numbers at lower lifts are not. Devon
Sorry for the wait but tt will be a day or two before I can get down to the shop to find and scan some flow sheets, I have a project for school I need to finish :blast:
You guys posed a great question, so what I'm going to do is try to find Stage 1/2 SE/TE heads with no porting all the way to CNC porting and make a big spreadsheet. Until then this is the best I could find. Highlighted numbers are the ones to look at. Intake port numbers should be the same for Stage 2 heads. The exhaust numbers for the SE set are a little higher because we were playing with backcuts, so those are optimal. Unported (I think) Exhaust Stage 2 numbers on a sheet here are .050 / 0.100 / 0.200 / 0.300 / 0.400 / 0.450 / 0.500 / 0.550 / 0.600 / 0.650 / 0.700 28.0 / 52.4 / 111.9 / 160.6 / 187.2 / 194.0 / 199.6 / 202.8 / 204.3 / 206.5 / 207.4 George: I saw an unported 2.30 sheet but I cant seem to find it now, but I do know that if you go with a big valve you NEED to get porting because it kills the flow numbers, so they're lower than the unported 2.130 numbers.
Here's a Gessler SE stg 2 with level 2 porting I saw this weekend. Intake #'s top row. Exhaust numbers 2nd row.
Great numbers,i will be sending mine to Greg this winter for level 3 it will be interesting to see the #`s with the big valves. Thanks