Installing Custom Roller Cam per FABO reccomendations

a comparison using Mike Jones
-------------1.6--1.5-lobe-@006 @.050
Jones chev 462 434 289 256 200
Jones Mopar 491 461 307 256 202
showing difference in lift with similar seat and .050 timing

Jones Mopar 491 461 307 256 @ 202

jones ch .488 .458 305 272@ 216

Jones ch 496 465 310 276@ 220
showing how much more duration you have to use with an .842 to get similar lift as .906

here's a 256 comp XE showing just the intake note the increased "intensity" over the above
XE 256H .478 447 299 256/ 212/ 22 54in 68 20 ex IC 54.5
4x4 5900 .488 .458 .305 250@ 205 122 @200 comp .904 shorter duration still more lift

HM2063164A .506 .475 .316 252@ 206 126 Hughes

4x4 2901 .498 .467 .311 254 209 126 @200 comparable comp .904 similar seat duration
K-52HYD .489" .458" .305" 254° 209° Easy on the valvetrain Engle