I wouldn't go no more then a cam spected over an E-303, if your going to run a 1.7:1 R.R. make sure you check piston to valve clearance. Your better off sticking with 1.6:1 R.R., not so many issues to deal with, Mike. SCT Tuner.:bigthumbsup
Question is, do you already have 1.7 rockers or putting together a list of valvetrain parts? I ask because if you already have the rockers, we can recommend a cam meant for use with 1.7's. Most Ford cams are designed for a 1.6 rocker, change it to a 1.7 and you have to recalculate your clearances and tolerances.
The Steeda cam/1.7 should work fine.
Forget stock replacements, stock springs are lousy to begin with. Put them on an aggressive cam and you're inviting valve float. You need to get performance springs that can handle the combination.
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