Thread: stumbling
View Single Post
  #13 (permalink)  
Old 08-28-2013, 06:12 PM
kensgranam kensgranam is offline
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2013
Location: Holbrook, ny
Cobra Make, Engine: FFR world products 427
Posts: 1
Not Ranked     
Default

WE replaced the Holley "870" with a quick fuel SS850 and replace the stock 6.5 power valve with a 2.5 because vacuum is at 5 PSI. This gave wastehauler a choke for the first time since having this car. It now starts and idles at 1000 after a warm up. We also changed the original GM style(coil in cap) mallory dist with a MSD, with street fire box and solid coil. Originally the car ran great . More responsive and smooth. Then after a few minutes the stumble was back. It turn out the spark plug wires were heating up and causing resistance to the plugs.
A new set of plugs and wires did the trick. Seat of the pants results with the Quick fuel is un believable.
R & R Tunning found the problem with the plugs and wires.
After he drove the car he suggested Drag Radials !!!
Reply With Quote