273 commano on the dyno wooooow

Yeah that's it.
My 69 FSM lists the "autothermic alloy tin coated" 273pistons at 549 gms, while the 318s are 592, and the 340s are a whopping 719. The 69 conrods are all listed as 726 gms, but I've seen the earlier lightweight 273rods.273 pins are about .180 shorter than 318/340s, and that might make them 8gms lighter
The 360 has the same 726gm rods, just press fit instead of floating. The KB107 360 pistons are listed at 502gms, thus about 10% lighter than 273 pistons.
The smallport top-ends seem to rev up PDQ, as well.
But I was surprised by the Edlebrock heads/AirGap combo. My 360 buzzes up to 7200 (with those KBs) in a heartbeat.I can't say faster than a 273 cuz I've never had a built one. But I did have to get a rev-limiter after I saw the tach needle coming down from 8000 on a missed powershift.I thought that might be a little much,lol. It's been set to 7200 since then, but I try to shift below that..................It revved even faster with the 292/108 cam