340 cam specs?

last post which I cribbed from an earlier post I do think plugging the above timing data into Dynomation would be interesting
as posted above
at .004 or SAE Jones is 264 and DC 260 is 284 @.004
That's about a 10 degree earlier intake close- IC is really important for low compression motors
I need to mention that this is the early DC 260

SWITICHING TO .006
.430 269 212 115 DC 260 early from cam doc
.430 269 221 DC 260 late 2001 catalog so same lift and duration but a Fatter lobe
.454 [email protected] [email protected] [email protected] Jones special
so @.006 Jones 254 and DC 260 is 269 degrees

so at .004 DC is 20 degrees longer on the seat 284-264 = 20
and @.006 DC is 15 degrees longer 269-254 = 15

@.275 lobe lift Jones is 64 @.275 when DC 260 is 42
about a 50 % difference
you can also notice that jones takes 10 degrees to move from .004 to .006 cam lift
and DC takes 15 degrees to rise .002

If you want to compare 269 @.006 duration of DC 260 (and shorter) These are in DESCENDING .006 order
.494 268 226 VD 60303 AMC 0703 1800-6200 Lunati
.506 267 220 140 Howards 721141-08 1600-5400 ( HM2203372A intake lobe) howards describes single pattern off the shelf grind
{ 506/506 267/267 220/220 108/104 smallest .904 shelf cam 1500-5400 wants headers }

.488 266 221 138 . X4X4 5904 MI 23.5 (11.3/12.2) Comp cams
.502 265 218 138 HM2183345A also used for AMC Howard
.475 262 220 VD 60302 1400-5800 Lunati
.494 261 214 134 HM2143294A Howard
.483 257 210 130 HM2103219
.454 256 213 VD 60301 also AMC 0701 1000-5000 Lunati voodoo
.447 256 212 124 XE 5441 XE256H 22 54 20 68 Comp universal lobe snuck in here
.479 255 208 128 HM2083190 Used for AMC Howard
.454 [email protected] [email protected] [email protected] Jones special
.473 252 206 126 HM2063164A Howard
.454 250 208 VD 60300 also used for AMC Lunati

But as with using .050 to estimate seat to seat .006 really does not tell the whole story
compare the .006 to .004 Jones vs DC
My cam doc goes all the way down to .001 and jones gets the door closed earlier than any other cam on this list
The shortness seat to seat with jones also shows a shorter .050 but this is gone by .100 lift
If you are looking for a cam in this range also check out Bullet and Racer Brown, Engle, Crower
Just showing what you can do for a low compression motor- or a tow vehicle- lots of coices