My only other concern would be once these heads are bolted on block, how much of a port miss match there would be. If you’ll be cutting the intake or the heads, to make them match up. May have to use a double thick intake gaskets, Butler also sells them. So what I’m saying all this is all well and good, but this is something you won’t know until you actually bolt them to a block and try to match intake up to the heads. Could to be very interesting
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