MustangWorks.com : Ford Forums - View Single Post - Crappy throttle response and detonation...Save me!!

Fostang · 12-22-2001, 10:00 PM

Well first you need to make sure the timing is correct. Can't tune a car without knowing the timing. Has it ever run correctly or did all of a sudden start doing it someday. I don't think that it's because its running lean. When is the last time you rebuilt the carburator. Maybe you got some bad gas somewhere and its time to rebuild it. Check the fuel pressure. Hows the fuel filter? Sounds like there is a problem with the secondary. Also 700 rpm seems a little high. Check it out and let us know.

12-22-2001, 10:00 PM	#2
Fostang Registered Member Join Date: Feb 2001 Location: Stockton, Ca Posts: 599	Well first you need to make sure the timing is correct. Can't tune a car without knowing the timing. Has it ever run correctly or did all of a sudden start doing it someday. I don't think that it's because its running lean. When is the last time you rebuilt the carburator. Maybe you got some bad gas somewhere and its time to rebuild it. Check the fuel pressure. Hows the fuel filter? Sounds like there is a problem with the secondary. Also 700 rpm seems a little high. Check it out and let us know. __________________ 67' Fastback-Supercharged 4.6 DOHC Cobra, T-56, 8.8 more to come. 67' Coupe-EFI, AOD, 8.8 90 Gt-Supercharged,MAF,TB,1.7's ripper, bassani x, 3.55's, 01' cobras, headers. 89'GT-Supercharged,Heads,Cam,Intake,TB,MAF,power pipe,headers,offroad exhaust,black bullits.