hi, i have a 98 cobra with stock 305 hp. i bought it from a guy who added c&l intake, mac longtube headers, mac offroad x pipe, flowmaster 44s, and 62mm dual blade throttle body. how much would that amount to now?

 

7rwhp.

 

around 280rwhp. give or take a few depending on different dynos.

 

Maybe a 20-30 hp gain.

 

Between 260-270. Ask me how I know.

 

You don't have longtubes moonshine.

 

^ hahahh

 

What makes you think I was referring to my car?



Longtubes on a NA engine = waste of money = fail


_____


Let me correct myself...


On a stock engine.

 

Hp for Hp as far as bolt on goes for a b head 4v longtubes are the best gain, 10-15 rwhp NA with a tune, ask ME how I know. OP: Sad to say the 305 base flywheel horsepower is a bit overated with longtubes,bolt ons an a tune your looking 280ish to the wheels.

 

Don't forget....stating your cars flywheel horsepower is like measuring your johnson by the bottom of your *****. Its inaccurate and no one gives a shlt.