1.6 rockers with stock 318 cam??

I'm not aware of there ramp rate. A cam upgrade even with the Chevy lobe used would be a noticeable power difference. IMO, do the cam, lifter and spring upgrade at the same time you do the intake, carb and headers. As far as ignition goes, the OE electronic w/ a Chrome box is the bet OE style ignition you can do. Though, a MSD will net you what they claim, easier starts, more power and mileage. I have the OE hooked up and left behind should the MSD fail to work.