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they mentioned that the 400 can be build and still pass the sniffer.
anyone think that same engine could be build and pass emmissions with the motorcraft 2150, but yet still be able to swap manafolds and run a 600ish cfm 4 barrel on it?
I am thinking on doing this. my 351 is still ok granted this head swap fixes all the problems it has been having.
but I want more low end torque for wheeling and just plain fun on the road
yes no problem on that. most aftermarket intakes for the 351m/400 ar for 2v heads. Also this applies to 351c intakes, but you will need the spacer plates to make them fit the 351m/400 blocks. for a few dollars more the aussie 2v heads erally bump up the cr and hp.