How can you increase your 350 engine hp?

Answer 1

The internal combustion engine is basically an air pump. With that in mind, the more air/fuel you can get through the engine, the more power it will make. There are all kinds of things you can do to improve airflow through the engine. Stock exhaust manifolds are VERY restrictive, so headers will definitely help. A high performance intake manifold will also help. The cylinder heads and camshaft will make a bigger difference than anything else... Especially the heads. Keep in mind ALL of them work together. You will need to install parts designed to work together. An intake manifold designed for high RPM operation will be useless with a stock cam. A stock intake manifold won't flow well enough to feed a high RPM camshaft either. Unless you want to modify the entire driveline, try to stick with parts designed to operate at a similar RPM range as the stock parts. The easiest and most cost effective parts to change if you are on a budget are headers, intake manifold, and higher ratio rocker arms. Higher ratio rocker arms will increase the valve lift without changing the camshaft. Those three changes along with a good air filter (like a K&N) will make a pretty big difference, and will work well with the remaining stock engine and driveline parts.