Welcome to hot rodding aka engine modifications. I can answer one of your questions. Air cleaners, I've got K & Ns part no. 56-1060, Custom air filter W/VEI Weber 32/36 prog. 2bbl, 5 1/2" x 9" Oval 3 1/4" H. Has a place to fit PCV valve on the bottom plate.
I'm not familar with kickdown cables. You can't shorten it and hook it to the stock bellcrank. The stock linkage looks like it would work with the carb mounted as the instructions say. Have asked Langdon to see if he's got the linkage?
Larry
