Flowed mine and another NIB tfs205 from summit last night also, TEA claims they do a few tricks the summit ones dont get (but wouldn't tell me what). The flow #'s on the intake side were even, but mine shine 10-11cfm more throughout the range on the exh.
Also noticed the oil passage ways are smoothed out on mine and not the ones orderd from summit.
TEA's flow sheet was 316/240 @ .600 but with a 2" header, I flowed all 3 heads last night with a 1 3/4 since thats the size I run.
I saw 311/234 @ .600 on my new heads last night on the flow bench at my machine shop, yes I know every flow bench is diff, weather etc which can effect flow #'s.
I also flowed my old ported 170s just to compair they were 286/213 @ .600 so def a nice jump.
I didn't really care about the #'s, just the comparison between the 3 heads. I did them one after another so the conditions were all the same.
Kinda cool!
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