I plan on building this 800 cfm model that came off a 85 Buick station wagon with a blown up 307 swirl port motor, had it for 23 years to replace the current super lean current 83 carb on the 70S. I plan on totally recalibrating it for a 220ish duration cam. I need to figure out the air bleeds for this carb for primary metering rods, going to get them from Cliff's High Performance. His big kit will have fasteners, the Metric mixture screws that adjust with a standard screwdriver, the removable plug for the APT, I am notching mine like my 78 carb which allows a part throttle mixture change in seconds. I also plan to buy two fast choke pull offs, one for my 78 carb, try and eliminate the bog, thinking that a faster pull off will help. Also extra Metric mixture screws for the 83 carb. Along with a new copy of the book, about $250 US. I had moved the container outside my shop and the main body was full of water for a month but should be OK, I think. I am also planning on rebushing the primary throttle shaft with Cliff's kit, has a self guiding bit, bushing installer and instructions. I am not sure about the suggested sheet of teflon. There will always be the joining gap, so that makes it less appealing. Amazon does have 1/8" thick sheets, just not sure if I should try it. I will contact Cliff and see if he has an extra power piston metering rod hanger to go with parts I am buying.