When the engine rpm increases, it’s possible that an over-advance ignition timing condition could occur causing engine detonation (pinging on acceleration) and a reduction in optimum power.

Beltdriven Timing Set - Belt Up Switching To A Beltdriven Timing Set To Improve High-RPM Engine Performance Is Easier Than You Think ...

Check out how repowering classic trucks can be done on a budget using the 350 Chevrolet small-block.

Engine front and rear seals and oil pan gaskets aren't as easy to change as the average valve-cover gasket. Timing cover gaskets and seals are also more-challenging.