Thread: 78 Trans Am getting some love

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I'm with Glen and Firebird, headers are nice and they look cool, but tuning is where the horsepower is gonna be for the street. Your motor should run great with what you have, so lets get some more details;
What is it doing through the RPM range (bogs, hesitations, sputters, falls on its face, peaks out to soon, exc.)?
What do the plugs look like?
What is the fuel pressure?
What is initial and total timing?
When does total timing come all in?
How much timing does the vacuum advance add?
How much vacuum at idle?

And as Glen said, lets get some air into the motor, at least flip the cleaner cover over. No mater how larger your exhaust, it will do nothing if air ain't gettin' in. Gears are good, they'll perform well with your cam and still cruise down the highway.