Looking to order this cam - #M6250E303 with these pushrods - #M6565L302 and these Hyd. Roller rockers - #M6500R302 can't forget these springs - #TFS-2500100 Why do I need 1.7 rockers when my engine came with 1.6 rockers?
This cam was designed for use with 1.6RRs. The 1.7 will provide too much lift and too much side loading on the valve stem. I have this cam in my car. It is a good cam. You cannot use the stock stamped 1.6RRs because they will bind with the cam and required spring set up. The ProForm 1.6RRs may not fit properly under your stock valve covers. I used Scorpian Endurance 1.6 RRs. They are a better product. However, under my 95 GT valve covers they also did not fit, but the fit was closer than the ProForm RRs. I had to clearance my stock covers carefully with a hammer and blunt punch tool. The ProForm RRs weren't even close to fitting.
You can try a taller EFI valve cover like one they sell on this site, but I do not know if it will fit under the EFI manifold.
I have a double spring set up on my car. The instructions & my head builder warned about bind with the stock stamped RRs. Yes, there may be more cost involved, but do yourself a favor and do it once. Get a decent set of 1.6RRs so you don't need to go back in.