Reply to "Feeling uneasy about my camshaft selection."

Scorpion sells adjustable rocker arms that bolt down to the stock pedestals. Scorpion p.n. 3224. That's one way to get around that problem. The other way is to use a cam with no more than 0.530 lift and just use the factory rocker arms.

Return the Comp Cam if you can, otherwise sell it on eBay. Find a cam with wider LSA, less overlap AND less lift. Here's why. A relatively stock engine should be rev-limited to 6200 rpm. As you add lift to the camshaft the engine's horsepower shall peak at higher and higher rpm. A 0.530 lift cam with 60 degrees or less overlap will make peak horsepower around 6200 rpm. Equipping the engine with a cam having more lift will have the engine making peak horsepower ABOVE the rev-limit regardless of how short the duration is. Engines with heads tuned for lower rpm (like your 331) don't have this problem. But this is the nature of Cleveland 4V heads. With the XE cam horsepower will peak around 6600 to 6900 rpm, and will rev to 7000 rpm quite easily. Unless you're willing to do quite a bit of work to the engine, I'd limit lift to 0.530. You'd be able to keep the stock rocker arms too. The engine can make about 400 to 410 peak horsepower with that much lift. The money you'd spend on rocker arms can be spent on a custom cam. I can provide a spec for a custom 0.530 lift cam if you'd like.

The XE cam also has 70 degrees overlap, which will take the bottom end out of the powerband, and there won't be enough intake manifold vacuum for the C6 tans.

The street dominator comes from a period of time (late 1970s) when people were confused, and the aftermarket was grappling to come up with products that people would buy. But your father is certainly entitled to have his nostalgic ideals, and its cool that you're respecting that. Kudos.