You might also look for vacuum leaks. The idle air bypass hoses may need to be replaced. The rubber boot under the fuel distributor and throttle may be bad. The injector seals may be bad. It's an '87 after all.

Check the following links:

http://www.peachparts.com/Wikka/M103VacuumLeak

http://www.peachparts.com/shopforum/forumdisplay.php?f=82

http://www.peachparts.com/shopforum/forumdisplay.php?f=84

Just a thought.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.