A tool like Proform's new pneumatic valve spring compressor. Proform's new Pneumatic Valve Spring Compressor can cut cylinder head disassembly time in half. Pulling the tool's trigger supplies up to ...

Obviously, these valve-control-related issues, associated with insufficient valvespring pressure, are the reason why camshaft manufacturers offer valvespring upgrades. The obvious answer might seem to ...

The scenario goes something like this. Our LS3 used to rev freely and make power all the way up through 6,800 rpm, but now it struggles to get to 6,000 and power is definitely down. After a thorough ...