Best Way To Get Some 'power'

[SCHOONER]

HI GUYS

HERE'S THE DEAL:

I GOT SOME OIL LEAKING IN BACK OF MY INTAKE MANIFLOW TOWARDS THE BACK OF THE 289 ENGINE I HAVE.
WITH A DOUBLE BARREL CARB ON IT.

I THINK THE OIL IS COMING FROM THE MANIFLOW.

ANYWAY(S) . . . LOL

I NEED SOME OF YOUR GOOD SUGGESTIONS ABOUT CHANGING THINGS AND GETTING JUST A LITTLE MORE POWER

I HAVE A '66 CONVERT. WITH A 289 IN IT. IT HAS A 3 SPEED TRANNY IN IT.

I WANT TO IN THE NEAR FUTURE, BUY NEW PARTS TO GIVE ME JUST A LITTLE POWER.
PROVIDING MY WIFE ALLOWS ME TO SPENT SOME OF 'HER $ $ $ "

WHAT DO GENTLEMEN SUGGEST AS FAR AS BRAND NAME PARTS.

I NEED A NEW MANIFLOW: WANT CHROME OF COURSE ~ WHAT BRAND DO YOU GENTLEMEN RECOMM.