[Johny Reb]

I just bought a new MSD blaster HEI coil for my 91 s10 and i havent gotten to use it yet except i did crank my truck up and it idled better and i revved it up and it revs faster. just put it on 3 hours ago.

hopufully it will help gas mileage.

 

[Johny Reb]

tell what types of coils you have and how good they are and if they have helped performance.

 

[joakwin]

i have the msd blaster coil on mine also

i have alot of bolt-on's tho
i already had headers, y-pipe and intake manifold, k&n, flowmaster be4 i put that coil on

i have about 115k on my motor and it runs pretty strong and gets good gas milages