I got a 1980 grand prix that I bought I love G bodys. Engine was junk I knew that buying it. I bought a 98 gmc yukon 5.7 that I'm in progress of converting over to carburation I'm pretty close. I know I cant use the stock pontiac trans. But I thought I ask what others used I know where i can get a 200 4r and also a 700r4 trans 200 4r is good its free 700 good but cost a pretty penny. I'm literally a couple days away from dropping engine in the vehicle now. Just didn't know what others are using and what flywheel will I need to use with the transmission to work with the engine. I know outer diameters and teeth and pitch all play a role. I sure would appreciatw any help. Cant wait to have another g body driving. I've owed many but this will be first one I've ever swapped an newer vortec into one so the whole converting to carburation is new not to bad so far though al I got to get now is a distributor for it and to lash out pushrods install intake and drop it in and all the small things of course
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