I would definitely go with the trick flow cam. It was a nightmare getting my car to idle right with e-303 cam. I ended up having to drill a 3/16 hole in my throttle body flapper.
Cam is easy money. Go ahead and replace your timing chain. And make damn sure to get your timing marks lined up right on the cam and crank gear.
Use plenty of assembly lube when installing the new cam so you dont scar up your bearings.
Use some lock tight on the 2 bolts that hold the plate to the block at the end of the cam.
Its too easy, 
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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