Adjustible cam gear Options

[lmcchesney]

This is regarding my 96x78 rebuild project. We will be using adjusted 2.0L D-jet FI system and gave up trying to find the ultimate cam. I went with the Web Cam 73 grind and lifters. My mechanic, Denny @Autocraft Engines, said he cannot obtain the best cam advancement with the stock cam gear and suggests to go with an adjustable stright cut cam gear. The costs approx. $260.
Question:
1. When I use the timming on my simulator for a 73 grind I am using 0.05 lift and 224° duration and intake centerline of 103° and lobe center angle of 108° with +5° advance. Are these correct?

2. Are all adjustable cam gears stright cut?

3. Who is the best source to obtain the cam gear from?

4. If you use a stright cut cam gear, do you not need a stright cut crankshaft gear?

Thanks,

L. McChesney