I have a crower cam part # 15512, its lift with the 1.6 are .496/.512
but since 93 cobras come w/ 1.7's my lift is .527/.544 ... This is used in a 331.. I had this cam in my stock 5.0 and i had my pistons notched, plus it was way too big for my stroke which caused a huge drag in the lower rpm's...But The way you figure your lift for the 1.7 is by using this equation..
Intake lift / 1.6= X , X * 1.7= Intake Lift , same for the exhaust side..
so if you want to figure out what your lift is for 1.7 r.r thats how you do it.. Then from there you can figure if the cam is too big for your engine, having clearence issues, which means you would have to notch your pistons. But like everyone said, if your having a custom grind cam, then you dont have to worry about anything...good luck