Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 350sbc 4bblwith Holley carb
View Single Post
  #2 (permalink)  
Old 05-23-2012, 12:11 PM
F-BIRD'88's Avatar
F-BIRD'88 F-BIRD'88 is offline
Yada Yada Yada
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,134
Wiki Edits: 0

Thanks: 4
Thanked 374 Times in 368 Posts
*****Start with a engine compression test**********. The secondary side of the ignition system is the usual suspect. Inspect and replace cap, coil rotor, wires, plugs as required.
A Hot aftermarket coil need s steel center pin on a HEI. The stock resistant carbon center pin will overhat and burn the cap and rotor with anything but a stock GM coil. A common fault MSD makes the steel pins that go with their swap in HEI coil.

Carb may be flooding ( fuel filter, dirt in needle seats) this will foul the plugs.
replace the plugs and fix the carb. Blown power valve will do the same thing ( back fire thru carb blows the PV).

Fouled plugs will idle but will not take throttle load. ( misfire)
They rarely can be cleaned once carbon fouled. replace.
Idle fuel pressure not more than 7psi.
Look for and fix any all carb/ manifold vacuum leaks. Broken hoses etc

Make sure the engine is grounded to the firewall with a ground wire and good contact points.

Google search: vacuum gauge diagnostics, then go buy one and use it.

Last edited by F-BIRD'88; 05-23-2012 at 12:18 PM.
Reply With Quote