You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re recommending a parts combo to get 400+ horsepower from a Pontiac 400 engine.

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Q: I want to build a Pontiac 400 engine. What parts would I need to build a sweet-running engine that makes around 400 horsepower? (Money is no issue!)

A: We think the Edelbrock Performer RPM package would be ideal for you. Here are the parts you’ll need:

The Edelbrock cylinder heads have Ram Air exhaust IV ports—so you should use this set of Hedman headers. Keep your compression ratio at about 9.5:1.

According to Edelbrock, this combo will yield 422 horsepower and 441 foot-pounds of torque on pump gas.

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