Hey guys, i just got a really sweet deal on an L24 and Round top Carbs to go with it! ($60CAD) i know puting 240 carbs on 280's is nothing new, but i cant seem to find alot of info on how to do it. So what modifications are needed to do this? also, what kind of performance changes will take place?

Thanks for the help. (p.s feel free to say its a stupid idea and i shouldnt do it)

So what modifications are needed to do this? also, what kind of performance changes will take place?

Just use the intake manifold for the carbs and then mount the carbs on. You'll need to locate the correct length throttle rod that comes from the firewall (one from a 240) and you'll also have to mount up the chokes on the interior somewhere (console). May be some differences in fuel line placement, but I don't think that's a big issue.

Make sure you clean up the SU's pretty good. Also, give Bruce @ Z Therapy a call and order some SM needles for those carbs. The stock 240 needles are too lean for the requirements of a 280 motor. The SM needles will richen it up to where it needs to be.

Other than that, it's pretty easy.

You mean an L28 with roundtops, I'm assuming...I'm sure you can find PLENTY of info on an L24 with roundtops...