318 draw through build

66plyValiant said

yes but # 3 and 5 pictured are only connected to the rest of the 6 cylinders with a 1" or less pipe, if your feeding 6 cylinders into a 1" pipe your bound to have problems

correct me if I don't see something I should because I really am trying to understand and not trying to flame anyone

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I'm not sure what size the header pipes are, they look to be 1 5/8" but the gases are flowing through both so you have 2x 1 5/8" pipes that all the other 6 cylinders are flowing through then meeting up with #3 and 5.
This approach certainly isn't the most efficient but for what Bakerlite is trying to acheive it will certainly have enough flow.