1st gear Hesitation

[ram250098]

I am guessing timming but what the hell do I know LOL
73 Cuda 383 4 speed.
The car has been and still is running great, but I have now noticed that under hard acceleration in 1st it sputters and losses power at a high rpm, 3500 plus. If I take off normally it is fine. This only happens in First gear.
Thanks
AL

 

[Chryco Psycho]

could be timing , you need tpo be approx 16* at idle , 36-38* at 3000 rpm & I would disconnect the vaccum advance permanently . could also be a carb problem , low fuel level in the bowls would be my first guess , second would be accelerator pump adjustment but that would not cause the high RPM miss

 

[ram250098]

Thanks for the tips, will have a look later this week, shouldn't be anything major...it just started.
Thanks again Chryco
AL

 

[R/T4speedconv]

Fuel filter?

 

[Chryco Psycho]

fuel pump pushrod could be worn too but that should be more noticable in high gear

 

[ram250098]

Thanks guy's, once my energy comes back I will give them a try LOL
I will try the filter and vacuum first.
Thanks again
AL

 

[Cranky]

Put a fuel pressure gauge on it and see what it does during the run. That's one way to see just what you have. You can tape/tie wrap the gauge to the cowl in order to watch it. How has it been running up until now?

 

[ram250098]

I have a fuel gauge on the fuel rail..never thought to look at it LOL.
The car ran great....I could pound on it all day without a problem, and then A week later I turned onto my road and gave it a shot and noticed the hesitation.
AL