Flip that lid!! The first thing you do to an old car #classiccar #car #oldcar #mechanic #racecar

Ya might not think it does much apart from sound but actually it has been tested and its shown to be able to give up to 7hp and that little bit was a lot for that time and heck I did it to both of my squarebodys and my camaro because I like it and oh the camaro didnt need more power its engine is not even close to stock

God help me I got a race car 😂

When my dad had the 90 suburban the lid was pretty flipped

I do this with my 86 buick electra estate wagon

Did that to almost all the 17 cars I had my senior year of HS in 1981!! Nothing more satisfying than the sound of a rochester 4 bbl carb kicking in!!!

Just dont put the air filter, thats perfomance

A little is a lot some times

Why did he show the pedal and the shift knob yet neither of them moving? I have never seen a video questioning if someone actually shifted until this moment.

3 HP

What does it do?

Flip that cookie

Unfortunately, the stud on mine isn't long enough

that

My left ear really enjoyed that engine sound

+8 sound points

Spring trick too

Makes sense considering velocity stacks have a 1-2° taper to them, so this replicates that taper but radially.

Yep definitely did that. On a box Chevy impala

I flipped mine because my air cleaner is too big for it to fit the right way😂

Did that with my SR-5 Corolla