I don't know but i can tell you it was less them before i put the 2.02 Valve in(eats up way to much csa at the ssr.)
it sure look cool but was a total failure
Unfortunately i didn't do a good job marking my pic's to the time in my notes.
I can tell you that it is port #7(the port i got the best flow out of) and at this stage it has a 2.02 cut into it and with a 30 top cut and a 60/75 bowl cut. think the bowl was at around 1.67 at that point.
That port, i ended up porting out to 200 CC port with 2.19 bowl. Flowed [email protected] and 270@600(after figuring out the chambler problems)
I then when back and started filling in the dead spots. and the ones that were not, i sanded back out.
In the end i had 175 CC port with a average csa at the throat at 1.71
Ended up at [email protected] and [email protected]
Imo...... you haven’t taken enough off that lump in the roof next to the guide boss, in the head bolt area.
That material needs to be completely removed for the “high effort” type jobs.
Along with more material removed behind the guide, making for more of a “boat tail” type shape.
I will try and get some current picture of my #7 port this weekend so you can see were i ended up and what you think can be improved one.
As far as the flow with a stock 2.02 valve. I have a bone stock never touch, carbon on the tulip valve and all. That i flow tested........... But can't find that data. I think it was like 199 cfm...
These heads with the 1.88 flowed [email protected] and [email protected]
