I have a 89 TPI 5.0 camaro do I need to change the gap to the plugs, and if so to what? I have SLP runners, a custom stage 2 chip that was programed to idle a little high because had a charging problem with the pulley kit, modified MAF, K&N, underdrive pulley kit, throttle body bypass kit. I will be putting on edelbrock headers soon as well as removing the fog lights and ram air tube through it to the air cleaner. All of the emission stuff is removed and turned off.

 

i hope not. i just installed a blaster coil last weekend. and havent actually drove the car yet.

 

let me know how it is. I have a custom chip with the timming advanced and I thin someone said I possibly need to adjust the gap on the plug's higher. But I doon't know to what gap or if that is even the correct thing to do. What kind of mods. do you have on your car and what are you driving?

 

same motor as you. i dont think gaps have to change just for a coil????, they would have included that in the directions. the coil just gives u a better and hotter spark over the old stock one. and i also changed the plugs, wires, cap and rotor at the same time. ur timming though may require a different gap. let me know.........

 

Is the plug/wiring keyed to only fit on one way? Back in the old days it was a common mistake to get coil polarity backwards. It would run, but it wouldn't make nearly as good a spark with the polarity reversed. The + side of the coil always goes to the power source (whether that's the car's 12V+ feed from the wiring harness or the + feed off an MSD ignition box). The - side of the coil always goes to the distributor or the - feed from an MSD ignition box.

 

Just run a stock gap ( .038 ) I think . I have the blaster and noticed no such loss.