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I understand what you mean by the dome "getting in the way"....but how does that affect your car? Decreased performance? Gas Mileage? I was looking at getting the dome to help with CR since everyone was saying 9.5:1 wasn't enough for that cam. The dome would put it about 10:1.

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In a perfect world the flame front would progress faster across a flat piston than one w hills but a flattop piston w enough CH to get quench will most likely give you too high of CR plus you'll need valve reliefs machined. Get the KB's w the quench plateau & mockup/machine to get quench (.040" max) plus the right SCR for your app

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Robert , Robert , Robert , you appear to know NOTHING about 383's , you should sit back and LEARN from those that do ...

KB does NOT make a quench head piston for a 383 , never has and probably never will, so you need to stop suggesting that to people building 383's. Nevermind to get quench with a flat top and a closed chamber ... uuum , just zero deck , you zero deck and with 80cc head you end up with 10.0 , since the heads he wants to use are 84cc he's not going to have too high a compression ratio ??? It's not rocket science , the problem with a 383 and compression is the SMALL bore size and the SHORT stroke, combined it's hard to get decent compression.