Lol, yeah even I have to admit that the .30 Collari carb was the pits! New ones are completely different though. The old Collari alloy carbs were cast. The new ones are machined from billet and then bead blasted to give a rough coat (this increases surface area and improves in cooling). They also have a better heat insulation sleeve installed around the carb base where it fits into the block. So in essence the carb is completely isolated from any heat that the engine might generate. In a nutshell for those that might be more familiar with OS engines it's quite similar to the carb set up on the V-Spec and Speed.

As far as the reducers are concerned on the new carb they are different than the ones from the composite carb. I just received samples of different sizes a few weeks ago for testing and have been playing around with ones from 5.5mm to 9mm in .5mm increments to figure out what to offer. The carbs still come with the 7mm insert pre-installed and I'll probably end up offering from 6.0mm to 8.0mm in .5mm increments. Figure that these should be available in a couple of weeks. Let me know if you guys have any more questions about this.

Regards,

Ron