aussie 408 combo

Hi , after pulling my 360 i found the bores oval and alreadty 40 thou over .I had tossed up the idea of building an engine myself but with a decent mopar friendly machine shop a long way away I decided to let an engine builder build the lot.
Im In Australia and have ordered most parts either from Summit or Mancinis.
The block is a LA 360 bored 30' , a Scatt 4'' stroker crank , rods and KB pistons machined to zero deck height .
A pair of Eddie heads ,1.6 Crane roll rockers , dual plane eddie manifold , crane ignition and a 750 vac sec carb.
The engine builder has recommended a retrofit roller howard cams part no. 710665-10 .
The engine will be a street /strip weekend cruiser and will probably run a 3500 stall with either 3.5 or 4.11 rear end depending if on the street or going to the strip.
Has anyone had any experience with a cam grind like this? how much difference will the 1.6 rockers make , is there any issues I should be asking about or looking for?
Itll be in a 69 valiant hardtop (dodge dart )
Any feed back appreciated
Ben