spark plugs???
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
spark plugs???
i am currently useing rapidfire #5 i heard a few people say they have switched back to ac delcos. that with the stock plugs the car runs better??? true or false?? if i do go to ac delco what plug should i use?? 91 vette tpi aluminum heads. thanks
Race Director
Joined: Mar 1999
Posts: 16,950
Likes: 0
From: Stafford, Virginia Kittah, Kittah, Kittah...
I've never had much luck with the Rapid Fire plugs... I've used them in 3 cars and in every application, they were great at first but them slowly faded out by about 5K miles...
As much as people cringe at the thought, I've used the Bosch +4 plugs in 3 cars so far with great results... All cars ran over 20K miles on the plugs and didn't suffer any problems...
As much as people cringe at the thought, I've used the Bosch +4 plugs in 3 cars so far with great results... All cars ran over 20K miles on the plugs and didn't suffer any problems...
