Hi,
You're off to a good start... by asking questions!
I have a TR4, so can't give you specifics about the setup you are considering. However, do *a lot* of homework about the camshaft, before you commit to buying one. If at all possible, work with a supplier who can also provide you with proven, matched components, either all at once or possibly in stages of upgrade.
A camshaft is central to an overall performance upgrade plan. It's got to coordinate well with all other engine factors: displacement, compression, gas flow (porting/valves/intake/exhaust), valve train geometry, valve timing, etc., etc. Heck, even cooling can come into the equation.
So, take your time, keep asking questions and surfing the Internet for info, and try to establish a working relationship with a primary vendor who can give you solid advice, based upon their own testing and development.
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