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I've built my own flow bench... it (unshrouding the intake valve) helps tremendously. My combustion chambers look like yours. Looks good!

Hope your build goes well and meets or exceeds your goals. I'll just add that you should polish your piston tops and combustion chambers - this is proven to help keep heat in the chambers and away from the piston. Give it a search on your search engine, i believe if nothing else I've said...

I didnt think or even hope that you would. I would have been surprised had you spent so much time on the head and not at least CC the chambers. You haven't seen the hemi head have you? It looks like a typical inline V8 chamber, rotated 90 degrees to place the intake valve closer to...

Just remember that what works efficiently at 9500rpm with a 0.600" lift cam doesn't necessarily work well on your average 20psi/7000rpm daily driver. I'm new to this board but not to wrenching on things. I have a hard time believing that no one on this board is familiar with tumble/swirl...

I'd like to know the true source of that photo. That chamber does not look like something done by Toyota. It looks like a backyard mechanics (like me) attempt at using a flat top piston. I've been wrong before though... like I said, I'm no expert.. I dont port heads for a Winston Cup...

looks OK, but I wouldnt have touched the combustion chambers if you dont know what you're doing. By unshrouding the valves that much, you removed the tumble/swirl that was engineered into the chambers by Toyota. Tumble and swirl is extremely important... it totally dictates flame front...