Planning on changing my plugs today or tomorrow. Any Specific Brand I should use? What may be the best?
'89RS 305TBI

 

The general consensus is ac

 

i use ac, lot of people here do

 

I used Autolite Platnium's before I read that everyone recommends AC's. I heard guys don't like the Autolite's but I've got about 30k on this set without a problem and the car fires up instantly every time, so I can't complain. I'm not about to switch.

 

I use boch plats. The single leads. any more than that and I think it is a waste of money. Does anybody have any thoughts about them? What a NGK's?

 

I think anything with platinum from a performance standpoint IMO is junk. Stick with just regular plugs like AC's or Champion's.

 

I have no problems with my Bosch Platinums. They fire very hot and won't lose their gap anywhere near as soon as a set of ACs.

 

My Bosch Platinums burned up prematurely and I switched to AC Delco's and they have been running trouble free since. I have a full MSD ignition setup except a set of Taylor wires and the Bosch's burned up after I did all my engine mods and ignition mods.....

 

I don't have an MSD digital box but that would be about the only difference between our systems. I find those digital boxes to be serious overkill, unless you need retard stages for nitrous.

 

I think it must be the digital box is frying your platinum plugs. Probably platinums don't need that extra zap to reach high temps, and when they get it they just go poof.

 

I have autolites , but Im about to rip them suckers out, throw em down in my driveway and run over them a few times . I hate em . Car just runs crappy , and they already have to much wear on them . Im going to put my Ac delcos back in with 30k miles on them .No offence to anyone on here who does have autolites , its just my experience with them .