I'm thinking about either picking a cam off or the shelf or having a custom cam ground. IVC has to be of some importance as everything that I've read on it is the cylinder will either have to much or to little cp, and everything points to the ivc point. I'm not saying that your wrong. I'm saying that it might be getting way too complicated for what I'm looking for doing with the car. I'm not going racing, towing, etc. I just want a decent running fun to drive street car.
Bewy is talking straight. For your mild build take the indication from the 128 formula. You are not considering a radical cam, and I expect you are looking for about 10:1 compression. One or two degrees on IVC is not going to make a huge difference.
Like I previously stated, if you do find a detonation problem you can not tune out except by backing off timing a bunch, just get a water injection system. The octane of water is essentially infinite. In the conversion from its liquid state to steam or vapour state, water expands 1,600 × and absorbs a huge quantity of heat to accomplish that.
Don't fret, despite how some make it out this is not rocket science. Building a race engine for say Prostock, NASCAR or F1 is a different issue not to be worried about here. For any of those engines the cost of entry is 100k and up. For F1, just one piston is $5k and up. Just a bit of perspective.