installed height 1.8"
120 lbs installed pressure maximum lift .580" 1.46" O.D open pressure 320lbs @ .580" 2.02" intake valve size
1.6" exhaust valve size
176cc intake runner
75cc chamber size
intake flow specs
.200" .300" .400" .500" .600"
129 190 231 249 251
exhaust flow specs
.200" .300" .400" .500" .600"
108 144 170 183 190
Look pretty close to the Edelbrock heads from what I can see, but over $1000 cheaper.