1sweet1989

I have a 89 with 5.0 ,Its bored 30 over. .First question....I changed the plugs and stock plugs will not fit my heads . It has 2545 autolights in it .Any one know what heads I have ? Next what should my timing be set at ? When I drive it hard around 4000 RPM the car doesn't want to go for a few seconds then it will. Any idea what that is about ? It has a MSD coil andBox. BBK short headers , anything else you need to know just ask. Thanks....

deetz03

you probably want to ask this in the 5.0 or general tech sections

ptkthekid

Yeah, You gotta be in the right section to get the right answers. These guys REALLY know thier stuff. Good luck!!

07cspony

Welcome to the forums. +1 on the right section.

Dazzalad

2545 fit the following:

1986 Mustang GT 5.0
1986-87 Thunderbird 5.0
1986-91 Crown Vic 5.0

Get rid of the msd box and go back with a stock box.