I was just wondering what are some of you guyz using as a plug on a pretty much stock 350 TPI except free-mods? My mechanic told me to ditch the Bosch Platinum 2's I just put on it and grab some AC Delco's, what do you guys think?

 

AC Delco, I think it is an r45ts? if i remember right, i got some out in my garage, i guess i can go look if no one else knows.

 

ac-delco r45ts or auto lite 26

 

I know what plugs they are,lol my question was do you think i should keep my Bosch's or grab the delco's like my engine builder says. lol

 

a lot of guys here really prefer the delcos or the autolites...I personally prefer bosch plugs (the regular ones), but any of the +2 or +4 or whatever multi prong plugs are

 

there is no need to run platinum plugs since we wont benefit from them so go grab the ac delcos or autolites . i tried platinums 11 yrs ago.big error on my part.

 

okay my problem is this, I originally had bosch platinum 4's when I bought my car, Car ran great as hell. I changed them to autolite's which reduced performance, I recently did a spark plug, wires, car and rotor change using accel parts and bosch platinum 2 spark plug which resulted in a misfire. My engine guy said that the problem lies in the bosch 2's, he says their crap and to go to Delco spark plugs. Whew... Now do you suggest this or what?

 

yes. AC is a ton better than bosch or autolite.

 

yes i agree with what your engine guy suggested since those bosh platinums do have a tendency to cause a missfire due to the type of ignition system that we have in our vehicles. alot of the newer cars are designed to run on platinum plugs and thier ignition system is manufactured with different schematics and power outputs.
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i beg to differ on auto lite since auto lites are just the same as an ac plug.

 

okay so....are the bosch 2's crap and could possibly be causing my car to misfire?
And thank you ljnowell for answering my question, i wasnt really inquiring if bosch would make me faster, its just a spark plug, really

 

yes it is possible it is also a good idea to check the spark plug gap to because you never know when a plug could be dropped by a parts person thus closing the gap a little or closing it completely the gap should be .045"

 

thanks Bro, Appreciate it!

 

 

So, I did a lil research real quick and i've came to the conclusion that I am going to and should replace the accel cap,rotor, and spark plug wires.
More than likely I will replace with Hypertech car,rotor,coil and use MSD StreetFire Wires. sound like a good choice?

 

there is nothing wrong with the accel cap,rotors or wires unless you have not changed then in 2-3 years. i would run accel wires but i cant due to the excessive heat from my headers so yes i have to run msd products. but for stock replacement they are just fine(accel)

 

but my car didnt start popping and misfiring till I put them on, I'm taking them off because i read more bad about them then good on here

 

We'll just have to agree to disagree, because I have seen lots of crappy autolites, and I dont like them. If its a GM its gonna get an ac delco.

 

and no ACCEL

 

Hi everyone.Mine is 84 trans am 5.0 lt stock engine with 220,000 km's on it.Yesterday i bought Bosch Platinum plus spark plugs(cost $10/pair) and accel spark plug wire pack(cost $49.99) ( which was recommended by partsource guy)
Some of the guys mentioned earlier that after installing bosch plat plus,they get misfire and other issues.I havent installed them yet,so i am not sure to go ahead with this installation or go back to store n grab Acdelco.My decision will be based on everybody's experience.

Please let me know ur recommendations.

 

as I posted before I've used bosch plats and supers for years in all kinds of cars without any problems, not caused by other issues (rich fuel, oil fouling et al). I don't think I've ever used accel wires, but I've used the generic 7mm parts store sets before without a hassle. I currently use MSD usually, cause I can buy them at the local speed warehouse for less than I can buy the cheap stuff at azone or advance.

my biggest recommendation when doing plug wires in general and especially with an F body is make sure you keep them away from headers/manifolds. Get looms and stand offs, zip tie them to other wire harnesses, whatever it takes to keep them away from the exhaust and keep them from rubbing on other components.

With plugs always and I mean always check your gaps on each plug, never trust the "factory" gap. and stay away from the "gimmick" plugs, extra grouding straps a la +2 or +4 or whatever don't do jack except cost more.