Hey Guys,
I replaced the Autolite 25's yesterday (with same) after 10,000 miles. Plug insulators are bright white, electrode is very clean and flat (not rounded), full circle, but the back side of the ground strap (away from the electrode ) is also white. Using the plug guide in Turner's 79-95 5.0 book would lead me to believe it's running lean or too advanced timing.
Motor is stock short block w/171,000 miles, thumper heads, tmoss lower, 1.7 rollers, stock 19 injectors, 76 C&L with K/N flat panel in stock air box with the f.p. set at 40 with vacum removed. Timing is at 14 with spout out. If it is lean, what should I bump F.P. to? Engine temp. is usually 190 but did go to 200 this week in 95 degree stopped (hurricane) traffic with A/C on.
Car runs great, just don't want to detinate (sp) it.
Thanks, I'll check back until our power goes off (Frances).
vann
I replaced the Autolite 25's yesterday (with same) after 10,000 miles. Plug insulators are bright white, electrode is very clean and flat (not rounded), full circle, but the back side of the ground strap (away from the electrode ) is also white. Using the plug guide in Turner's 79-95 5.0 book would lead me to believe it's running lean or too advanced timing.
Motor is stock short block w/171,000 miles, thumper heads, tmoss lower, 1.7 rollers, stock 19 injectors, 76 C&L with K/N flat panel in stock air box with the f.p. set at 40 with vacum removed. Timing is at 14 with spout out. If it is lean, what should I bump F.P. to? Engine temp. is usually 190 but did go to 200 this week in 95 degree stopped (hurricane) traffic with A/C on.
Car runs great, just don't want to detinate (sp) it.
Thanks, I'll check back until our power goes off (Frances).
vann