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Sounds the same as what Ryan is just finishing up for me right now( mine is 439")other than I'm using the crappy M1 and 11.3-1.
I am seriously pumped to get this thing home and get this thing running

Rick



Yes similar... his will have alot more compression (has a 16 degree angle milled W5 with pretty small chamber), & hair more camshaft.... Yours has more radical piston/bore combo, & too much intake manifold. Both getting dynoed, probably make similar power, but I'd expect the 416 to put up hair better # with the better head/compression & cam. I think his 416 is going to make way more power than he wants, so I'm having to decide if I want to de-tune it a bit with cam.