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But on the Q manifold. The two cooling passages on the end are next to the distributor. On the performer manifold the cooling passages are on the opposite end. I know we were talking about the thermostat being on the wrong side, but isn't this another major hurdle. I'm not to in the know on GM blocks. But do those cooling passages go into the heads? And if so, does that mean heads would have to be replaced at the same time (assuming the coolant ports match up on the Q blocks).
I can take a closer look when my boat gets delivered Sunday.