Q: Can't get high revs from engine. Seems choked

asked by on

327, 200 4R, open exhaust, HEI. Engine suddenly won't rev high Rpms. Not driven yet. Work in progress. Getting gas and spark. Trying to get timing set exactly right but won't idle well enough to get it there. About to give up hope. Have replaced many parts so don't know where to go from here.

My car has 74000 miles.
My car has an automatic transmission.

Depending on the HEI system you have you may have a weak coil or the carburetor is running out of fuel at the higher rpms. Use a spark tester to see if the coil is capable of sustaining the spark at the higher rpms without losing energy. If rpms are cutting out at an exact rpms then the most likely cause id the ignition coil. If the engine seems to bog down and then catches up then it may be loss of fuel pressure to the carburetor or enough flow from the tank.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Can't get high revs from engine. Seems choked

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I broke a fuel injector plug in, how do I replace it?

Hello, thank you for writing in. The type of repair you need to do is going to depend on what side of the clip you broke. If you broke the fuel injector side, you will have to replace the injector...

Q: Carburetor leaking gasoline

Hello! It sounds like the needle valve and float in the bottom of the carburetor may be stuck which is causing the carburetor to flood with gasoline. Usually a few knocks by the fuel inlet with a rubber hammer will...

Q: My car acelerates on it on and when I try to stop it seems as it try to take off making my car jerk really hard. I just replaced m

In addition to seeking a diagnostic and repair, you can report unintended acceleration incidents to the National Highway Traffic Safety Administration - NHTSA. Obviously, uncommanded acceleration is a serious safety hazard. Without a first hand examination of your car, it...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...