Melling SPC-7 cam and lifter kit to go with what Stuart said. If you do both of these things you will be forced to change your transmission. TH400 conversion or any 4 speed is the next step.
And - you should be in the old-guy big car forum with the rest of us.
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"If you do everything you'll win"
-LBJ
13 Smiles per Gallon:
66 Bonneville wagon
66 Bonneville 2d HT - In perpetual progress
2005 GMC L-33
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