Cam Specs for Australian 250 2V with 200 block

I have purchased this cam off of E-bay years ago for $40.00 and would like some input on my engine build for future classic ford .
Here are the specs ...

You need close to 10.5 compression ratio to cover up the long duration. Don't go over 195 cranking compression.
Will you be using 1.5 rockers or 1.6 or 1.65??
Before you go too far out what is the duration @ .050??

I was planning too take a page from the six cyl handbook and put the Ford HSC 141 4 CYL . Good choice ? And was sticking with the 1.5 rockers .

You have the situation in hand. You might want to advance the cam 4 degrees to help boost your low end & mid range.The HSC pistons have the wrist pin offset .090" so that will perk up your low end also.

1) This would be a bit two much for a original Stromberg Two Barrel ... yes / no ? 2) An adapter plate with 350 holley two barrel 3) Or Aussiespeed 4 barrel Manifold and Holly 390 four barrel ?