Need a little help in advance

Hi. My son and I have already did this swap. LX's site has a lot of useful info. I don't know which tranny you are planning to use, be sure to get a flywheel or flex plate balanced for the magnum. I went to Brewers Performance. Nice people to deal with. To answer your question, I used my 40 year old cable on my conversion. I used a throttle cable bracket that I found in our local parts store. Summit sells a similar one part number SUM-G1414 for under 10 bucks. The wire tie in the pic is because of the cheap plastic used to center the cable. It broke when I switched from a Holley to Edelbrock. I hope the pictures help.