HP #'s from a built 351W versus FMS 351 versus stroker

How much appx. HP & torque can I expect from a 351W with Edlebrock aluminum heads, SVO E303 cam, Performer RPM EFI intake, BBK 70MM TB, 30lb. injectors, mass air meter, shorty headers, BBK Xpipe w/cats, a chip, and Cartech Fuel system?? Ford Motorsports has a 351W crate motor that hits over the 400HP mark on the dyno with a big carb. It's too late for me to go that route 'cause I'm too far into the process of prepping my '69 shortblock. Now, if I was to stroke the 351W to 393 (using that same combo of bolt on parts) what extra gains can I expect for my $1500-$1700??