i am putting a new engine in my 91 z24 and i was wondering waht should i put in , should i put a gtp , 3.1 turbo or if u can let me know which one produces the most horse power and can i put a 5 spd tranny with the motor thanx and i hope i can get a response soon because i have the money and i need to know which one to get so i dont spend it on something else so hit me back