harkz28's Recent Activity

  1. harkz28 replied to the thread 1970 RS Z28. Running a factory LT1.

    Adjusting the spark plug gap .40 seems to as hell have helped. Next Step Up with the Jets in the carburetor

    Nov 24, 2017 at 7:28 PM
  2. harkz28 posted a new thread.

    Running lean or okay

    'm going to attach a picture of some spark plugs can you tell me if I'm running too lean or okay.[ATTACH]

    20171123_085510.jpg

    Forum: High Performance Modifications

    Nov 23, 2017 at 3:32 PM
  3. harkz28 replied to the thread 1970 RS Z28. Running a factory LT1.

    Nov 23, 2017 at 3:18 PM
  4. harkz28 replied to the thread 1970 Z28 Engine idle problems.

    Got the idle problem pretty much squared away. Reset the timing and adjusted the idle screws on the carburetor with a vacuum gauge...

    Nov 19, 2017 at 4:14 PM
  5. harkz28 posted a new thread.

    1970 RS Z28. Running a factory LT1

    1970 Z28 LT1 Stock Holley 780 MSD ignition. When running at 70 on the freeway feels like the car is surging. Car seems to run fine on...

    Forum: Troubleshooting & Diagnosis

    Nov 19, 2017 at 3:43 PM