Anyone heard from @Wyrmrider lately?

I would add that just because you have a .904” lifter doesn’t always mean you need to take advantage of it. All I’ve ever read (from more than just wyrmrider) was about how much you are giving up, or you’re giving up the Chrysler advantage, running slow, lazy, Chevy lobes, old technology etc ad nauseam

Plenty of comparisons on the dyno from articles but can’t say I’ve seen anything regarding comparisons at the track. Nor has anyone ever shown how big a fender, door, car lengths difference there would be either on the street from any various launch, rolling speeds/rpm gear drops etc Nor times at the track difference. All theory/speculation or calculations. Not actual.

Not questioning that there is an advantage, just mostly the assertion of “giving up too much” that has been and is still bandied about. Average street or street/strip setup I’d say there are other ways to likely make up any difference, and not have to deal with all that comes with fast rate .904” lifter profiles. Just my take

Wyrmrider does have a point in this sense though. The .904 lifter can handle a faster profile ramp. A chevy .875 grind may be on the ragged edge of what it can handle with that lifter but be somewhat tamed down with the bigger tappet. It depends on what someone is looking for. If you don't mind the valve train noise you can get more lift and area under the curve with less duration with the bigger profile. Just like everything else with engine building it is all a trade off.