flat tappet cam in magnum motor?

Thanks for the info.I understand about the roller versus hydraulic cam debate.My problem is the price of the roller cams.I havent looked a lot,because the ones ive seen are @300.00 or more.I can buy 2 or 3 flat tappet cams for 300.00!Are there some cheaper roller cams with good specs for under 200.00?Also,most of the guys i know just reuse the factory roller lifters.Dont they ever wear out?I would think anything that rolled for 150,000 miles would be pretty much wore out?How hard is it to redrill the non magnum intakes to the correct angle for magnum heads?Ive seen the magnum intakes are quite expensive too.