Horsepower limit for out of the box Edelbrock RPM heads

A 300 cfm OOTB head by MoPar Performance.
W9’s. As tested by Shadydell speed shop.
(At shadydellspeedshop.com)
Overall cost is unknown to me at any level.

LIFT-----AS-CAST--------PORTED
------------IN/EX-----------IN/EX
.100”------72.5/N/A--------74.2/N/A
.200”---129.4/103.5-----141.5/102.8
.300”---189.8/146.6-----200.1/158.7
.400”---239.8/172.5-----245.0/203.6
.450”---265.6/176.0-----276.0/215.6
.500”---288.1/182.8-----303.6/226.0
.550”—293.2/182.8-----332.2/233.6
.600”---295.0/184.6-----349.8/241.5
.650”---295.0/184.6-----370.2/247.7
.700”---295.0/184.6-----379.2/251.1
.750”----N/A/N/A--------387.5/258.1

Edelbrock Victor head as Edelbrock reports it.
(Taken from Hughesengines web site.)

Lift Intake Exhaust
.050 39.3 29.7
.100 75.8 57.4
.150 116.1 84.8
.200 167.4 115.5
.250 207.6 134.5
.300 238.5 154.1
.350 267.5 170.9
.400 296.2 187.0
.450 320.9 201.7
.500 339.3 212.3
.550 348.5 221.4
.600 357.3 227.7
.650 362.4 233.6
.700 366.7 238.6
.750 371.1 243.1
.800 371.3 246.7