horse power estimate??

[5.0 fresh]

i was just wondering if anyone could help me out wit a knowledgable estimate becuz i have herd a very wide range of numbers so im lookin to get a good anwer. i have a 89 lx hatch trick flow aluminum heads, trick flow stage 1 cam, holley long tube headers , mac exhuast/ no cats , 255 pump , 24 lbs, trick flow upper and lower intake, ford racing adjustable timing chain, ford racing pullies , 3.73's in the back , bbk cai, 70 mm tb, 73 mm maf. any replies would be greatly appreciated, i am fairly new to the site, my name is doug and i just turned 17 years old and will never drive anything but a mustang! im also wondering if a dyno tune is 100% neccasary because i am affriday of damaging the motor on the pull because every last dollar i have is in that car and have no money to replace anyhting right now.


-thanks guy