Reply to "I have two quick questions??..."

Panteras, being an Italian-American hybrid, aren't simple cars. The physical size is a little smaller than a Pontiac Fiero, yet there's a longitudinal mounted medium sized V-8 in there with enough room for two people and a weeks worth of baggage. And 351-Cs are not simple, either- at least compared to the everyone-has-one 350 Chevy. Once fixed, 160 mph should be a throttle push away.
FWIW, 'melonizing' is a patented steel treatment that hardens the surface and turns it a black-oxide color. Not all steel distributor gear makers use it- it appears to be 'gilding the lily' if you already have a steel gear. Ask your cam maker where to get such a thing; if they want to make a cam sale, they'll have the info. Note also that Crane Cams is back in business in FL under new owners, and they have steel dizzy gears that are known to work. The website is spotty; try 1-866-388-5120 for a human to talk to.