727 parts needed for RB install in a 69 barracuda

Everything worked out for the bracket. I set up the kickdown when the engine was still on the dolly and all works great.
I installed the engine transmission today, and have plenty clearance for the mech kickdown so happy about that, but
my accelerator cable (new) is way too long. the firewall hole is so close to the Mopar Performance valve cover I don't see how any length would work. Anybody else have this issue and worked it out?