fuel

[Hank70SS]

Be careful with the oil, again it depends on the engine. If it doesn't have a roller cam then you need an oil with a higher ZDDP level to protect the cam. Today's cars all have roller cams and most oils don't have enough ZDDP to protect against cam failure.

Gather all the info you can on your engine and post it. GM made millions of 454's over 40 years and they're not all the same. What ever info you have can help us help you.