the yukon i always seem to have issues with has started to strike again, low oil pressure and slipping third gear in my 93 yukon, 5.7, 4l60e. so time for some motor and trans work, basically i started building a motor for my 72 but i think ill just swap them out together. questions is for all your tuning guys what the max you usually see tuned into a tbi motor as far as cam lift? i was hoping to be able to use the .470/.490 cam thats already in the motor, has vortec heads, carb intake ill use an adapter, and ls6 springs with comp retainers so i know the heads can handle it all. i was gonna have eagle mark do a base tune on the motor for the time being till i can get around to datalogging. he did my old setup and it runs fantastic so i trust his work.

as far as trans work is concerned if it matters itll be 2200 stall, pro built full upgrade kit, deeper pan, and full rebuild kit. i thought about finding a 4.3 era 4.60e but im uncertain which years will work with the 93-94 trans.