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« on: September 16, 2025, 10:14:01 AM »
I generally put a TFS head at 35-36 depending on compression. Then I find a linear curve is not the best at WOT, I generally bring it in faster starting until about 2000 and then smooth it. Be sure you checked your setup using the hand helpd though, there uis an offset if commanded timing doesn't match the light
If you are blowing out a dipstick, a breathers will help, you just may get a little mist. However, I would ask what you are using for a PCV and breather now? I had one come in with a fixed orifice PCV (no rattle just a little hole) that doesn't do so well on a big incher. An old school PCV can work well, although the breathers are a get out of jail free if it's simple crankcase pressure.
Although a stroker in theory will have slightly more blowby due to stroke, you should not have that little ring seal, nor should you need a significant break in. If it's huffing hard, need to see if you broke or damaged a ring or even popped a head gasket.
I recently had a 347 on the dyno that the repop breather was misdrilled, won't ever miss that again, it pushed the dipstick up at WOT, but didn't after we fixed it
Worst case, it's easy to damage a 1 mm ring if you used a standard ring compressor too. They won't break, but you can bend them without trying hard without a tapered compressor