So I heard about the Bosch +4 and fusion plugs, are they any good in the third generation Camaro. Has anyone seen a big difference? I have a 85 Z-28 305 carb. Should i just go with the AC Delco platinums or what?

 

i ran bosch +4's on my old 305 and they fouled out in under 5k miles. i run ngk plugs in everything i own and love them. msd makes great wires as well

 

Are the AC Delco Platinums any good?

 

never had experience with them, but being platinum, its overkill for the use

 

put in anything new for that year and model it wont make much differance to a stock engine.platinums just last a lot longer,irridums even longer.price goes up accordingly.everybody has a sparkplug prefferance and a horror story.you have to find yours

 

according to lingenfelter ac delco is the best for chevy smallblocks but i never used 'em. we have have bosch platinum +4 and they have lasted 10 years in ours, never changed them yet but they are giving out now

 

i run plain old bosch platinums in my 86 tpi 305 and theyre great,about 4 mpg more than standard ac delco plugs.just make sure to use anti seize on them