Where is anyone getting this 'maximum recommended lift' for 901's?
FROM THEIR CATALOG ON THE LINE "MAX. REC. LIFT", THAT'S WHERE. Just because they list the spring force at heights of 1.650" and 1.250" does not mean that the difference of .400" is some sort of 'maximum recommended lift' spec.
TRY READING AGAIN, THEY LIST THE SPRING AT .450" LIFT IN .050" INCREMENT'S FROM A 1.7" Ht. TO 1.200", AND THE SEAT LOAD
IS 83# AT 1.7", THE 340HP IS 69# AT 1.7".
COMP Cams® - Specialty Valve Springs
BTW, the OP's cam is not a 292/.508 cam.
I CAN READ, THE 292/508 IS A 7K CAPABLE CAM IN A 340 EASY, AND MOPAR LISTED THEM AS A 2ND VIABLE CHOICE TO THE DUAL SPRINGS THEY PREFERRED, THEY SHOULDN'T HAVE ANY TROUBLE WITH A SMALL COMP MAGNUM LOBE>>LOL!! It is 270/.468 (solid)... and will be lower lift once he sets lash and uses the 273 rockers. So he is gonna be around .100" from coil bind with the 901's.