340 tunnel ram
I ran a 340 with a tunnel ram in my 68 Dart back in the 80's and I drove it daily and street raced it all the time. They do lack a little in the low end but I think that is all relevant on what you have in the engine. Most of them are designed for the 3000-8500 RPM range which is why they just keep pulling. When I was racing it I shifted at 6800 or 7200 depending on what tires I had on it and the weather, and even at those RPM's it wanted to keep going.
If you never ran dual carbs before it can take a bit to get the hang of tuning them but it isn't as hard as people think. I ended up running a pair of 600 Holleys that I modified quite a bit, converted to center pivot bowls, extra metering plates, jetting, choke horns removed, and a lot of internal modifications. There is a lot better carbs out there today that will be a lot better for street use and still perform great.
One tip I would suggest is keep notes of your adjustments, even the smallest turn of the screw, this may sound strange to a lot of people but if you never messed with multiple carbs before, this will reduce the frustration of keeping both carbs tuned the same while you are getting the hang of it.
I ran a 340 with a tunnel ram in my 68 Dart back in the 80's and I drove it daily and street raced it all the time. They do lack a little in the low end but I think that is all relevant on what you have in the engine. Most of them are designed for the 3000-8500 RPM range which is why they just keep pulling. When I was racing it I shifted at 6800 or 7200 depending on what tires I had on it and the weather, and even at those RPM's it wanted to keep going.
If you never ran dual carbs before it can take a bit to get the hang of tuning them but it isn't as hard as people think. I ended up running a pair of 600 Holleys that I modified quite a bit, converted to center pivot bowls, extra metering plates, jetting, choke horns removed, and a lot of internal modifications. There is a lot better carbs out there today that will be a lot better for street use and still perform great.
One tip I would suggest is keep notes of your adjustments, even the smallest turn of the screw, this may sound strange to a lot of people but if you never messed with multiple carbs before, this will reduce the frustration of keeping both carbs tuned the same while you are getting the hang of it.
