JDS, welcome to the forum. Hope that you get some good advice from some of the experienced engine guys that hang around here, and that you enjoy a long stay.

I'm not an engine expert and won't try to blow smoke by giving you advice on your cam choice other than to offer that today's reformulated oils don't work well with flat tappet cams. There are several reasons that all of the OEM's have only used roller lifters for the last 20 years or so, mostly performance and efficiency factors, but the need to eliminate zinc and phosphorus from the oils to stop fouling catalytic converters sealed the deal on cams. You can run one of several racing oils (Brad Penn, Joe Gibbs) that still carry enough of the heavy metals to keep the flat tappet cam happier, but the right answer is to go roller lifters and not worry about it. There are guys who don't agree, but if you take time to really research the facts the answer is clear.