Engine Dies when in 4-wheel drive

[swamp rat]

I know Edelbrock offers some linkage adapters, i think i ended up with an after market Cal Custom adjustable chrome mount, and i was able to rob the little brass ball off the rodchester and mount it to the edelbrock for the throttle, i think also for the kick down was another part off the cother carb but i also have the 350 turbo.

So in 2wd the tranny will shift into drive and reverse without the engine dieing, but when you shift the transfer case to 4wd it will die?