CooperMan is spot on, it will defo will need re jetting and timing sorted!

In an ideal world this cam would be much smoother and nicer to drive on a pair of 40's.

In years past when the RACMSA imposed a rule that road rally cars could only run a single carb much knowledge was gained about running tuned xflows on a DGV.

You could try the following;

Air Jets: 170/160
Main Jets: 150/155
Idle: 55/55
May be a little rich on idle, if so try 50/55.

You will strugle to time a modifed xflow correctly with a standard advance curve, it will always be a compromise. The snag is they like a lot of advance at idle as much as 17 degrees, however if you set it at this you will then have a dangerous amount of advance further up the rev range. A modified distributor like the Aldon one will help, however the easiest but not the cheapest solution is a '123 IGN' programable one.