You guys might want to contact Roger Mandeville @ mandeville auto tech. in spartanburg,s.c. 864 582 0038 about your carbs and parts.

For those that don't know the name he was racing mazdas back in the champion spark challenge in an RX3 and won several many times for mazda in IMSA and then went on in RX7s. they are great people to work with and know niki carbs very well and will only do legal things.