Comp Cams XR280r thoughts to given combo

With the milder cam, extra cubes and higher flowing heads I would think your combo is less tire friendly than mine. LOL
I plan on having the battery in the trunk. I am doing the American auto wire kit and the whole car will be re wired anyway.
My progress is very slow as time has not been on my side lately. The Edelbrock Performer RPM is not available til like August or something and not holding my progress up.
I think I am going to order the AR engineering timing cover, ATI stock pulley balancer, timing set and lifters soon.
Been debating the Torrington bearings on the timing set or not and BAM lifters or the 829s or? I've read the 829s are happy in stock lifter bores? Some of the more expensive can be loose? Experiences and people's lifter bores seem to vary on this one.

For what it's worth I have stock size 3/8" OEM Mopar valves in my heads. Aluminum heads only save about 40 pounds over iron and lose heat (power) compared to iron. The real issue I have with aluminum heads is they all have larger valves in them than they actually need. Air speed is power and big valves slow air speed down. A port like the mine can use a 2.08" intake valve and move a lot of air. Air speed and holding the heat in makes for great power production.

I have a Cloyes Race Billet(9-3625TX9) timing set with the bearing in mine, but it's honestly not a needed item. I just wanted it and a factory double roller would have worked just as well. I plan to buy a Jesel belt drive for the next engine for the main reason of harmonic reduction. I have the Comp 829 lifters and have used many sets over the years. I just couldn't justify the cost of the Isky lifters for cams/ springs I've used. If I was running cams over .700" lift I would most likely be using Isky lifters.

Here's a Performer RPM I spent about 40-hrs. smoothing out before the engine grew larger and never used it. I also did the same thing to the Victor I am running on the 499.

440-Performer-RPM-Reworked.jpg

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Tom