Carburetor suggestions for 318

Those carburetors respond to a really accurate metering rod, step up spring and jet set.

If you hit the top with the torx screwdriver and get new ones, you should be good to go. I don't know what part of indiana you are in, but you may have to jump down one set of jets in the primaries and see if you can get it tuned for about 1500ft elevation in primary and secodary.

It may not make much of a difference, but there are a lot of things that can change tune. The best way to tune a carb is by Air/Fuel ratio readings. An emissions test is a cheap way to get PPM readings from your setup to tell you where you're at. I'm going to use an O2 sensor in the exhaust and plug it after tuning.

If you can't get it to run to your liking, look at a Street Demon. That's also what I am running.