Not much, I wouldnt exspect it to b the diffrence from burnin rubber or not, maybe 5 - 10
10hp
yes
bout 10 to 25. depending on what size of motor
adding headers will allow engine to breath better and boost up horsepower but not by much, headers also make you vehicle louder with pipes.
20-25 as a rule of thumb. More with good heads.
if you can find the hp. of the eng., you can add between 12-20 more hp. for the headers.
Not enough to even notice.
Start with a cold air intake, then add headers. If you want 100 or more horsepower instantly add nitrous
There are too many variables that determine what hp increase headers will give. Engine size, carbed,f.i.,stock,hi perforforman ce,car weight,the list goes on and on....
carb, cam, intake, headers, heads, msd igntion, or a 350
You would probably only get 5-10hp at the crank from installing both, depending on brand and other modifications.
they will combine. Alcohol dissolves in water quite readily.