Intake differance 273, 340, 360

It is always good to use a sealant on intake bolt threads and around the water ports. These washers from McMaster-Carr might get you close to level.

McMaster-Carr

Use spherical washers. Do a search on Amazon for them. They will get the angle just right. Lube the mating surfaces, the grease you slop on a cam for assembly should do the job.

https://www.amazon.com/dp/B00GKZDDUS/?tag=fabo03-20

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