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Mrturner1 · 01-21-2016, 10:39 AM

Here's the numbers on the heads. Any idea what the bottom one means? And how do I check for decking or porting?

01-21-2016, 10:39 AM	#199
Mrturner1 Registered User Join Date: Nov 2015 Location: Colfax California Posts: 1,644	Re: Starting my engine build Here's the numbers on the heads. Any idea what the bottom one means? And how do I check for decking or porting? Attached Images