[70 goat]

I got a 70 gto with a 400 ys motor. I am running a 750 eldbrock carb. The car seems to hesitate at about 30 mph. My fuel pressure is about 3to5 psi at idle, stock pump.I have a see thought fuel filter and some times i can see the fuel being pump in other times it's full just a little air bubble on top.Do i need a new pump or is their another problem. I need so help.

THANKS DAVE

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[70 goat]

I got a 70 gto with a 400 ys motor. I am running a 750 eldbrock carb. The car seems to hesitate at about 30 mph. My fuel pressure is about 3to5 psi at idle, stock pump.I have a see thought fuel filter and some times i can see the fuel being pump in other times it's full just a little air bubble on top.Do i need a new pump or is their another problem. I need so help.

THANKS DAVE

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[Blackcat]

Is the carb the Q-jet replacement or the Carter AFB type. Is this hesitation Under load? When you give it gas? (put the pedal to the metal)

[70 goat]

Hey Blackcat thanks for responing to my post. The carb. is a direct fit on to the eldbrock intake. I put a space plate in between the intake and the carb. the speed shop guy said i needed it.And the hesitation is at about 2000 rpm or 30 mph. It's almost like a misfire. Replaced the points & coil same thing.Fuel pressure is eratic between 2 to 5 psi.My next step is going to replace cap & rotor.Any suggestion would be helpful.

THANKS DAVE

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[PROBRD]

You might try new plug wires. Could have one or more bad ones.

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PROBRD
(probrd1@aol.com)

[Blackcat]

If your carb is a Q-Jet the secondarys may be opening to fast.

[slobrd]

I agree with probrd. My experience with misfires or fuel problems is that if the problem is due to electrical causes the miss is a sharper or quicker miss as opposed to a fuel related miss.