A lot of people go from Z car site to Z car site, I am one of them. I think I responded to your question on Zcar.com. I think the SM needles will not do any thing for the stock 2.4, they can make the mixture too rich too. I know a person with them on a 2.4 and he has not had any problems but I do not think he has gained much from them either.
Bookmarks