car acts like it has a rev limiter but it does not?

[65stang289]

Do you guys think I need to bump up the fuel? Iam running 5 and a half psi now. Just when I get on it going about 4500 and up it will start to pop and sound like a rev limiter . IT still pulls hard and all just now when I gets to that point I shift. I pulled the plugs they all look fine got the nice tan on them.

 

[mdjay]

Sounds like you are indeed running out of gas. However I have had that problem with too small of an air cleaner as well...

 

[67MustangManiac]

Yup, check your air cleaner..run without it up the street. Also, what are your valve springs like?

Maniac!

 

[12sec67]

if its not the gas and the valve springs then...how old is your distributer?

 

[LMan]

valve springs, esp if they are the originals.

 

[pabear89]

Do you guys think I need to bump up the fuel? Iam running 5 and a half psi now. Just when I get on it going about 4500 and up it will start to pop and sound like a rev limiter . IT still pulls hard and all just now when I gets to that point I shift. I pulled the plugs they all look fine got the nice tan on them.

5.5 is a little low to keep fuel in both bowls at that higher rpm band.

Pump it up some and test it.

PB

 

[65stang289]

I have a 14inch air cleaner on it now so it is getting air. I dont know how hold the springs are. I want to run the car at the track on friday to see how she does. The car has been down for 10 months and I want to get her up and going again. Last time out she ran a 9.7 at 73mph in the 1/8 which is ok. This time out I want to run a 9.5 or better.

 

[10secgoal]

I would bet its the "DIZZY" hehe. 12sec67 just figured it out, and 2 years ago it had me stumped too.his was at like 6100, and mine was at 5500. No matter what I did, what gear I was in, whether it was under a load or not. BAM 5500 rpm wall

 

[thehueypilot]

I had a high speed miss (4k - 6K) that turned out to be the spark plugs had too big of a gap for the supplied voltage to jump across. The early model distributors have a resistance wire that limits the voltage to 12 volts. I reduced the gap and cured the problem. I also eliminated the resistance wire (located at the ignition switch on 68's) to get 14.8 volts to my distributor because I am not running the old points and condenser set-up.

 

[302 coupe]

I have a 14inch air cleaner on it now so it is getting air. I dont know how hold the springs are. I want to run the car at the track on friday to see how she does. The car has been down for 10 months and I want to get her up and going again. Last time out she ran a 9.7 at 73mph in the 1/8 which is ok. This time out I want to run a 9.5 or better.

ditch the torker 2 for an instant performance improvement. Those things are junk...

 

[hungrymonkey]

doesnt valve float do that?