1:7:1 for a stock cam and 1:6:1 for a modified cam. A set of steel guide plates and new push rods are a must. I would also highly recommend upgrading the valve springs. The push rods should be rated for no less then 8,000 RPM.
If you have stock valve covers then the baffles will have to be removed for the extra clearance that will be needed for the new rockers.
I would go with the Comp S/S rollers instead of the HS.
I got the mopar 1.6 and 1.7 rockers they both came with pushrods and guide plates in the box easy install. I also got the mopar performance valve covers.In my opinion the 1.7s gave no real increase in power my truck ran almost identical times at the track with 1.6 or 1.7 rockers, I bought the 1.6s because i am going with edelbrock heads and cam from fastman, just waiting to see if there is a pushrod length difference with the edelbrock heads