philly3384

i changed from ford motor sports to msd cap and rotor and i changed the plugs and gapped them to what they were in the other plugs.. which was .4 and i recently read my codes and it says im running lean is there any reason why i lost power when i changed my wires and plugs or cuz now that i have a good spark now that my lean condition is worse?

stanglx2002

i have my plugs gapped at .5 the factory spec

vfast

.52 on the plugs

philly3384

what heads do u have i have the edelbrock performers.

vfast

I run gt-40 on 1 car and some AFR 225 on #2 and y-303's on my other car

88GT40

regap your plugs to at leat .50 buddy and i would check fuel pressure to see if that might be reason for you to run lean...

stanglx2002

i agree and your fuel pressure should be at least 38-40 psi

88GT40

stang lx2002 with all your upgrades don't you think you could open up your gap a little and and get a little better comustion, just a thought...

stanglx2002

im going to open them up to .54 when i get my 24# injectors put in

philly3384

thanks.. yeah im going to a swap meet this weekened and going to pick up a afpr and gauge and see whats goin on here.. do they sell like adapter where u can run the line farther so i can see it when im driving?