Buick Special 62 total hp?

[driftboy]

Hey guys

i just completed a new challenge and won the buick special 62

i read on the forum : ----------------------------------------------

Buick Special '62
848BHP / 6000rpm
- 795ft-lb / 5200rpm
----------------------------------------------

But i have bought everything available for this car and i cant get more than around 790hp

How do you guys get those extra horses?

Help will be appriciated

 

[m8h3r]

Oil change and drive about 170 miles to break in the engine should get you there or there abouts 👍