I got a few replies to my question about putting my motor in but Im still not sure about one thing. Where do I need to start as far as trimming the lip of the floor to firewall seam so I will have enough clearence to get the 400 turbo in there ? Is it just where its recessed ? And how far back ? Should I reweld the seam from the inside after I trim it or will it be OK the way it is ? Its been trimmed already but only up to the spotwelds. Anyone have any pictures ???