Stockish 340 upgrades, cam needed

The guy doing the balancing recommended to shave the pistons as he says the 1008 gasket is better for an aluminum head. He said it’s a better gasket. He said u don’t want thick gaskets with an aluminum head.
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A complete waste of time and $$ for this type of build imo.
Zero extra hp.

It won’t be any worse, you’ll just be out more money.