ok i just sold my 97 acura integra with a buch of bolt on, and bought a 89 mustange lx. this stange has a buch of **** done. my Q is what should the spark plugs be gapped at? here are some of the mods

powerdyn supercharger 9psi
24lbs injectors
255lph fuel pump
msd 6al
msd 8897 prog.
msd distributer
edelbrock upper and lower intake
bbk spacer
bbk throttle body 70mm
bbk egual hedders
tremec t3550 tranny
3.08 gears
and hole bunch more
will be putting pics up soon

 

Anything will run at .030. Tune from there........

 

try .040-.045

 

um no...

boost = small plug gap

run between 32-38

 

yes small gap. Boost will blow large gap plugs' sparks out.
Same with nitrous.