yes it should be interesting to see the results
http://garage.grumpysperformance.co...eption-has-changed-over-time.8379/#post-29224
http://garage.grumpysperformance.com/index.php?threads/z28-1st-2nd-design-cams.4463/#post-11732
http://garage.grumpysperformance.com/index.php?threads/the-cross-ram-intake.623/#post-1657
Standard 302 (30-30) cam, P/N 3849346
Casting #3849347
254 duration @ .050" (intake & exhaust)
.485" lift (with 1.5 rockers)
114 deg. lobe separation
Exhaust Max lift @ 116 deg. BTDC
Intake Max lift @ 112 deg. ATDC
First Design Off-Road cam, P/N 3927140
Casting #3927141
Intake 257 duration @ .050" (333 advertised)
Exh. 269 duration @ .050" (346 advertised)
Lift: .493" intake, .512" exhaust
Intake Max lift @ 108 deg. ATDC
Exhaust Max lift @ 116 deg. BTDC
2nd Design Off-Road cam, P/N 3965754
Casting #3965751
Intake 248 duration (324 advertised)
Exh. 267 duration (334 advertised)
Lift: .512" intake, .535" exhaust
back around 1969,we used to buy those CHEVY cams for $47 each at the Chevy parts counters,
matched lifter sets we $38 they sounded great,
but they were designed for road racing not drag racing,and we found that there were better designs for drag racing cams
but we soon found the faster cars were running a CRANE 110921,
in heavy cars with 3.90:1-4.11:1 rear gears and for lighter cars with a 4.56-4.88:1 rear gear the 110981 and 110921
(back then they were called something else, before crane changed their part numbers)
if your convinced you need a hydraulic lifter cam this crane 110711 gives reasonably good performance in a 10.5:1-to-11:1 compression 383 built to similar specs