I have a 53 3100 truck, with a 57 235 engine. The engine was re-built in '97 and passed down to me. I do not believe the current throttle linkage/return spring set-up is correct. According to my research, the current linkage is for a chevy car. I am running fenton dual carbs with dual exhaust. Based on my set-up, can I switch this to a truck linkage/vertical spring set-up? Will this work with a car engine? I notice at times, that the throttle doesn't fully return to resting. I have attached 2 photos.