I recently modified my I4 inlet manifiold. I am using Fireblade throttle bodies (929R) which have fixed centres. Hence I had to dogleg the two outer ports. Not ideal but should be ok.. I machined up the original casting, turned up the stubs from ali tube and made an MDF jig to hold everything in line and then got a local guy to TIG weld it. I'm using megasquirt. I've attempted to attched photos, hope they will upload ok.
John
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