Details huh? well, how about my proposed combo...
-67 383 2-bbl engine (low comp, i probably dont wanna know... JohnRR depresses me every time he brings it up) unrebuilt and staying that way
-Holley SD intake, basic mild plenum mods that worked VERY well on my 440, no heat crossover
-Many different spacers to play with
-Holley 800DP or Street Avenger 670 to choose from. K&N stub stack
-alum water pump and housing, single groove stock pulleys (car has no accessories)
-MSD Pro-Billet dist. Will be getting the MSD box too.
-Chrome oil pan (deeper, stiffer than stock, gonna paint it engine color, i dont like chrome)
-Alum valve covers
-Mini starter (Dakota)
-Hedman shorty headers with modified collectors (because the stock ones suck)
OR
-Long tubes (whatever i can afford)
-3" mandrel X-pipe duals w Spintechs and T/A style exit
Not yet acquired...
-Whiplash cam (like the sound, the modern Chrysler lobes, seems to make good power, REALLY like the cylinder pressure building effect)
-Machining on another pair o' 516 heads i have. Was gonna install some new Ferrea 1.81's (that i have already), port 'em as far as i dare, cut the guides, shave 'em as far as i dare.
I may or may not do the head swap before dumping the plant in the car. If the guides NEED to be cut for a .518" cam (they dont for the Mopar .509"...???) then i guess i'll have to, but i'd really like to avoid it for now. That machining is gonna add up i'm sure...
There is no money for a rebuild, so no quench unfortunately. I looked far and wide for a 68-9 383 Magnum runner, hoping i could get
closer to quench and better compression... but never found one. The 67 came out ov a very nice 300, and i knew the owner.
Rest ov the car:
-Lakewood scattershield (have block saver too)
-McLeod PP (have to buy a different clutch disc though)
-Hurst Super Shifter 3 with Pistol grip
-833 out ov 70 340 Cuda
-8 3/4" rear (not in car, have yet to put it together or find a pumpkin... the sure grip i had turned out to be junk)
-Might get tricky and mickey-mouse an aluminum driveshaft from something at the wrecker (dont have a shaft yet)
-Aluminum rad (junkyard)
-Electric fuel pump
The car is a 70 Challenger 6 cyl/3speed car. The final first-phase curb weight with the big block (and now that i just sold my FG hood, dammit) should be around 3150lbs. And yes... it WILL be that light. I'm a weight-reduction master (and dont even own a hole-saw).
The 670 cfm would be a better choice with your Whiplash cam. Ever take a look at the Lunati Factory performance cam for the 383/440 Magnums
pn 10305LUN, if you have concerns with valve guide
machining (higher-rate double springs). Food for thought and the numbers don't look bad at all! Just an observation. 
