Would a 90-91 acura integra be a easy engine and tranny to rebuild?
i would tell you to just buy a new motor and tranny from a salvage shop and install it then use the old stuff to learn on as far as rebuilding you can buy parts here and there and just learn the way a motor and trans work once it is all done and you add the mods you want you can sell the other motor and install the original then tweak it to get i to run right after all this you will have a better understanding on how to make more power and build from there i have seen tegs hit 800-1000 hp but it takes big money to do this my teg is a gsr and all i can pull is 461 at the wheels and it took 3 years and roughly 9k in mods and upgrade to the motor and tranny to do so but good luck and happy building
