A little over 550 over the nose as I recall. The distributor started having a intermittent miss after 6. Is a plug and play pertronix Billet flame thrower 2 . That we have determined was the cause of it. I'm going swap distributor to either a MSD or a OEM . Wand a cd box. Called pertronix and they think it's the module since it's over 2 yrs old.

Just want to say a big thank you to everyone her who has put up my question and has has a hand in in helping me get my 449 stroker together. Been along time getting everything gathered up and a lot of second guessing.But it's finally done. This community and forum is the best. Again thank you all

Performance Summary:
      Cubic Inches:   449            Dyno brand: Super Flow
      Power Adder:        you too       Where dynoed: Carlsbad NM, Stoney's Speed Shop
      Peak Horsepower:666.5 @7000 where we stopped the pull
      Peak Torque:635.5 @4500

Horsepower and Torque Curves:


Engine Specifications:
   Block brand, material, finished bore size, other notes:
      390 ribbed block, 4.10 bore
   Crankshaft brand, cast or forged, stroke, journal size:
      Scat 4.25 cast
   Connecting Rods brand, material, center to center distance, end sizes, bolts:
Molinar 6.7
   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:
Mahle dish, 10.75 cr +/-
   Main Bearings, Rod Bearings, Cam Bearings brand and size:

   Piston rings brand, size, other notes:
Stoker kit from Survival Motor Sports
   Oil Pump, pickup, and drive:
Precision blue printed hv, FT pick up, 1/4 in ARP drive
   Oil pan, windage tray, oil filter adapter:
F/T pan with added trap door baffles, Canton windage tray,stock truck adapter
   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050")
Mike Jones hyd roller,254/261@.050 ,.390 lift at lobe, tight lashed .015 hot.
   Lifters brand, type: Crower solid roller with pressure oiling

   Timing chain and timing cover:POP double Roller, FT  cast iron cover

   Cylinder heads brand, material, port and chamber information: BBM , CNC'D port's by Blair Patrick,

   Cylinder head flow in cfm at inches of lift (28" H2O pressure drop):
      Intake               Exhaust
      .100               .100
      .200               .200
      .300               .300
      .400               .400
      .500               .500
      .600               .600
      .700               .700
      .800               .800

   Flow bench used, location:

   Intake valve brand, head size, stem size:
2.20 Ferrera,11/16 stem
   Exhaust valve brand, head size, stem size:
   1.68 Ferrera,11/16
   Valve springs brand, part number, specs:
PAC
   Retainers and locks brand, part number, specs:
PAA
   Rocker arm brand, type (adjustable or non-adj), material, ratio
T&D race,1.76,1.80
   Rocker shafts and stands, brand, material:

   Pushrods brand, type, length:
Comp cam, 3/8
   Valve covers, brand, type:
Holley M/T
   Distributor brand, advance curve information:
Pertronix Billet
   Harmonic balancer brand:
Power Bond sfi
   Water pump brand, type (mechanical or electric):
Stewart hv
   Intake manifold brand, material, porting information:TFS track heat, unported

   Carburetor(s) brand, type
Quick Fuel 1250 dominator
   Exhaust manifolds or headers brand, type:
2" primary home assembly from a bbf Speed way motors kit and flanges from Hells Gate Hotrods.

     

Is there any advantage to running a MSD distributor instead of the dura spark with a aftermarket cd box ?
Have a pertronix 2 plug and play billetright now and noticed a intermittent miss between 6000&7000 rpm when dynoing.
Have narrow it down to the distributor in my 449stroker.

It's definitely doable, still tweeking and tuning on mine

I put one on my 449 stroker that going in my 75 F100. I added a couple of gated baffels  a inch or better in front of pickup tube just for insurance

Yes sir, that does help,alot  thank you. Looks like,with a little heat and massage, it would work out

Very nice, those tunnel rams are just plain sexy ,lol