Edelbrock Air Gap RPM intake. Pretty much outperforms everything unless you go to full single plane race style intakes. I've got one on the 340 in my Duster, works great. I drive it year round as well, it does take a little longer to get warmed up in the winter but not bad. Yes, I know, I live in California, but I also commute early in the morning and it's not unusual to have to scrape ice off my windshield before I go during the winter months.