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 have a 2013 Malibu LT And was trying to get my upper oill pan replaced

Hi Khalia. Thanks for contacting us tonight. This is a service that our mobile mechanics in your area might be able to complete for you. To request an estimate and to schedule an appointment, simply click this link and enter...

Q: Q: car cranks but doesn't start

This engine will most likely have the old style ignition points and condenser. This type of ignition needs to be replaced every year or 12,000 miles or you will end up having no starts, hard starts or the engine may...

Q: Q: Car starting, but turning off

You may be having an issue with the antitheft system not enabling the fuel system or possibly your fuel pump may be having an issue. Take a look at the antitheft light on the dashboard, when the problem is happening...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.