low duration makes more power? interesting comment.
You dont need the 1.7s with an aftermarket cam, which you have. 1.7s are for people who dont want to change thier cam.
you have edelbrock heads and the e-cam (which is the same as the edelbrock cam that they sell in their performer package). The heads dont flow much over .5 lift, and the e-cam has .498 I think. In the future, if you want to change cams, you will be buying 1.6 rockers more than likely. Most cams are designed to run with 1.6 rockers, and their lift numbers are advertised with 1.6 rockers.
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1993 GT/AOD
'93 Mustang GT