Falls on Face and Dies?

[Glow Worm]

OK.  I just removed the 600 CFM Edelbrock from my 73 340 Cuda and replaced it with the original, rebuilt Thermoquad (6340SA).

I think i correctly made all of the required adjustments and the car runs great under normal driving conditions . . . but . . . from a standing start the car falls on its face and dies.

Out on the road I can kick it down and it performs flawlessly.  Air/fuel mixture seems to be good.  Barely a quiver at idle.  Doesn't stall when operating the throttle by hand when in neutral.  When the car stalls it starts right up with no issues.

Do you think this might be a metering rod adjustment problem or perhaps the timing?  The timing has not been checked with a light.  Only set "by ear."

I was planning to take the car to the drag strip (test and tune) Saturday, but can't do it with this problem.

Thanks!

[dfrazz]

The timing has not been checked with a light.  Only set "by ear."

I was planning to take the car to the drag strip (test and tune) Saturday, but can't do it with this problem.

Thanks!

You need to reset the timing.

[Glow Worm]

Going to try this on my own without a light. 

Which direction should I try turning the distributor?  Clockwise or Counter clockwise?

[TelisSE440]

Small blocks need to turn the cap counter clockwise and big blocks clockwise to advance the timing... But a timing light would help you a lot.

[Bullitt-]

We set mine using brother CPs method... no more hesitation

http://www.cuda-challenger.com/cc/index.php?topic=4430.msg33565#msg33565

I preset the Idle Adjustment Screw so the transfer slots were perfect squares then adjusted the timing slightly to raise or lower the idle, worked well after using CP's timing method 

[TelisSE440]

We set mine using brother CPs method... no more hesitation

http://www.cuda-challenger.com/cc/index.php?topic=4430.msg33565#msg33565

I preset the Idle Adjustment Screw so the transfer slots were perfect squares then adjusted the timing slightly to raise or lower the idle, worked well after using CP's timing method 

  Flawless technique... Worked on my car...

[Chryco Psycho]

You may not have enough accelerator pump shot also  is there 3 holes in the lever for the accelerator pump ?
 I agree you need to get the timing set first though

[1 Wild R/T]

It could be accelerator pump, it could be timing or the secondary air door may be set to soft.....

[Glow Worm]

I will check the pump lever.

[jimynick]

It could be accelerator pump, it could be timing or the secondary air door may be set to soft.....

Yep, they'd be my guesses. Watch the air door while someone else whacks the throttle open, it shouldn't just pop open, but open as rpm increases. Good luck