Yet another 273 build advice thread!

plug that 360 cam into aj's numbers
I think you will find it lacking, it's the long closing ramp problem but stock torque in a 360, 273 not so much
remember the 360 cam was a smog cam and designed to add to the EGR effect by closing exhaust late

I was off, I was trying to stay away from 268 and 262 cams because I know they do not work in your application and was recommending a 256
seems that might even bee too big but I do not know what AJ was thinking of "two sizes smaller"

the 6 pack pushrods should work with Mopar lifters
what's the ch on those supposedly 8.5 pistons
betcha when you do the math you're in the 7's

so here's what you do
call
Kirk at Bullet (662)893-8022 ext 103 reference 620-3
249/ 254 201/206 432 lift 112 in at 107 (+5) uses .858 of the .904 lifter face so it's not out to the edge and should wear well Hyd (or ask about a solid)
that's one size smaller than the 256 Lunati or Howards
how's that look AJ?

from what I see the shorter seat allows the Lobe centers to be spread out for the log manifolds and still keep the intake closed point reasonable
longer ex is for the heads and log manifolds
However log manifolds do not like a lot of overlap
btw the chevy version is 400/430 lift this one is much fatter so you still get the power
Bullet has quick turn around when you decide to pull the trigger
you could also check with Jim at racer brown
I do not see a shelf grind that would in any way optimize your build