Hey, I left my 572 "70% street/30% strip" cam specs up to my Mopar centric engine builder to decide. Solid roller, and Michael at B3 Racing Engines is providing the T&D 1.6 ratio rocker arms and valvetrain geometry correction kit. I really love the sound of my current cam (292°/.509) not sure of the LSA on the Purple Stripe in my 440, but I LOVE the sound at idle. I'm thinking this one should sound pretty good too??:
View attachment 1362104
w/1.6:1 rockers
0.427" cam/lift = 0.683" gross valve lift intake (not including deduction of the lash)
w/1.6:1
0.430 cam/lift + 0.688 gvl exhaust
291* adv. intake
& 301* adv. exhaust duration
should be/have a lil' bit of the ol';
bucket tee' bucket tee' bucket tee' bucket tee' bucket tee'
choppy-sounding camshaft at about 1000-ish (min.) rpm idle
roller cams 'sometimes'
(usually in my vast experience)
tame down the choppy 'idle tone' too
(sounds like it's a bit faster between 'bucket tees' if that makes sense)
more-tame sounds, at the same spec
(but way better cam)
than an old design like the Racer Brown 292*
or MP/DC Purple Shaft .509"/292*
Hydraulic Purple shaft FT/solid or Hyd. cam would...
I had a few of them back in the day, street cars...
Loved the sound
, not the best cam though...
should sound nice
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funny story, well sort of
I had great luck with an old 'Norris' cam HFT
(don't quote me on spec.s)
it was a raspy-sounding SOB
0.318" cam lift = .477" lift @ 1.5:1 (both in. & ext.)
but I used 1.6:1 Harlan Sharp rockers
0.318 x 1.6:1 = 0.508" gross valve lift
it was like 302* adv. duration IIRC (both int. & ext.)
don't remember overlap or center lines
I want to say it was installed at 0* advance,
cam had like 2* adv. ground into it
it was somewhere like 106* -107* -108* (?)
it
shouldn't have made the power it did
with a RB 440/474 cid (IIRC), very early stroker combo
homeported & gasket matched 906's, CM retainers & keepers etc.
IIRC stock valves
(may have had stainless Manley intakes 2.08")
like 0.100" overbore for RB 4.42 (bore) some Veniolia
460 ford pistons, which had the correct comp. height/long rod
don't remember which now, Childs & Albert rods/bearings
(not many people were doing MoPar strokers in 1979-ish)
IIRC 3.90" stroke
(offset ground 0.200" w/SBC 2" rod, from a 3.75" 440 crank)
2x4bbl low/inline Offy 413/426 intake = 'I know, I know'
(it fit under the Chargers hood)
Holley 660 center squirter/tunnel ram carbs 2x4bbls combo
same car different cam, ran a full 2 tenths better in 1/8 mile
(than the Racer Brown 292*, I was shocked, it was a through-it-together deal)
I had 5.13:1 gears
(
from when I had a 318 in the car, that beat the crap out of a bunch of BB people
with that lil' teen, between BB builds)
with N50/15 (27"-ish)
B&M Super Holeshot 3500 stall, 727 with a shift kit, ratchet shifter
wah hoo 
ran solidly/consistently
in the low-mid 12's 1/4, street tires & 2.5" thru mufflers old
Thrush 'Hemi Turbo Mufflers'/junk
I wish I knew then what I know today
(can't remember mph offhand, not good, I want to say like 105-106 maybe)
way too much gear, spent about 1,000 ft, 6,800-7,000 rpm
could hardly drive it on the hwy like 4,000rpm going 55-60 max
I didn't know any better, I was young dumb & full of ----
it was more of a stoplight warrior,
did very well street racing in a heavy car,
get them by a few cars in the 1st 300ft
68 Charger R/T 3,800#s
Anyway it way outperformed the Racer Brown (MoPar spec.) 292* camshaft
(not the best cam either, but it was "the cam of the day")
when I put 4.30:1 gears in it, same all the other stuff,
it dipped into the 11's barely, crossing at 6,800 (?IIRC)
112-ish IIRC
it really shouldn't have been as fast as it was
anyway back to the OPs thread sorry
