69 dart 340 4 speed

[Moparhead]

Hey need some help mainly predictions. Ok what I got 69 dodge dart 340 4 speed.
68 340 bored 30 over
Forged pistons and steel crank
509mp cam
X heads ported and polished
Edlebrock performer rpm intake
Edl 750 carb with 1 inch carb space
Doug headers 1-5/8 primary 3 inch collected
Holly red electric fuel pump

8-3/4 rear 391 gears traction bars.
A833 4 speed with racing gears, And a hurst comp 2 shfter for quick shifts mccloid clutch. This combo had does better than 11.55-11.60
I'm hoping low 11s and around 425- 500 which is what the guy said who built it depending of porting done to heads any predictions. It's ran better mid 11s b4 the clutch was functioning correctly thanks

 

[Moparhead]

Looking for 340 360 383 440 426 combos

 

[Moparhead]

Any Similar combos? Hp 1/4times thanks I'm running it today ill post what I get.

 

[Abodybomber]

Depends on chassis setup.. If you were getting mid 11's out of it,I would imagine your chassis is close. What combination did you have,that ran mid 11's,and at what mile an hour trap speed? Let's start there,guy.

 

[Moparhead]

Same combo as before after I got the clutch diled in and made my traction bars work his car is a whole lot more constant it hooks like no problem. Before the clutch And everything around 115

 

[o1heavy]

my 360 has ran a 11.92 @113mph 74 dart sport
360 total seal rings (which im not sure I like ) kb 191 pistons
mopar 292/509 cam with a set hughes 1.6 rockers 340x heads home ported so prolly hurt more helped ,airgap intake(1 inch spacer) which ran better then the m1 single plan and last but not least 1 5/8s headers o wait the trustee ole 750 4779 carb that I worked the elmulsion tubes and idle restrictors over with a couple drill bits and taps

 

[340dartley]

Here is my similar combo. I am the new owner of it although I have been around the car for the last 20 years. Bear with me as I do not know all of the specs.
69 Dodge Dart. 340, cast iron stock manifold,750 dp, large tube headers, electric water pump, MSD7AL. mopar electronic distributor, 727 Trans with reverse valve body, 4k stall converter, 4.30:1 rear gears. Ran a best of 12.0

 

[Moparhead]

Thanks guys anymore? Cold air has done wounders just ran 11.37 at 117 mph with more left thank god for former air strips!

 

[Moparhead]

Have seen a lot of darts and dusters 340-360s with 380-400 hp doing 11.9 to 11.79 that's awesome. A lot of similar combos.my buddy had a68 340 4 speed dart Been bored 40. over.The heads have had lots of work. Put in 202 vavles its got a really big cam in it the biggest cam you can put in a 340 aluminum intake weind.balanced 580-600 mechanical cam Slight port and polish on the heads on the intake side and some on the exhaust bigger springs and better retainers and new pushrods too horsepower 450-470 11.2-11.5 1/4
That's what he said was done.