you should already have a roller cam in your engine. that menas you don't have to buy lifters unless one of yours ins bad.
roller lifters don't wear in to the cam the way hydraulic flat tappet does.
you can usually find LT1 cams for 35-50 bucks in good shape. if you get an f-body cam try to get one of the 96-97 cams. they revised teh exhaust lobe to create a stronger power band.
later
tim
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