We flow balance and dyno test popular intakes on our powered-up 347 stroker.

Panhandle Performance compares ported small-block heads on its in-house flow bench.

Our 347 stroker finds another 89 hp in porting work and a custom cam.

Panhandle Performance stuffs 349 ci into a stock 5.0 block.

Tim Lyons tries to hunt down the superchargers.