Found this scanning sites for some horsepower gain for my 66 300-2V... any comments? Apparently you can use agressive aftermarket cams with this... what is the HP gain from this..? Thanks in advance. [TABLE="width: 800, align: center"] <tbody>[TR] [TD="width: 175"]BUICK 300 with oversize valves[/TD] [TD]Exhaust valve-Manley VW 38mm (1.496 inch); intake valve-TRW Volvo V2927X (1.723-inch); 360 Chrysler springs; Chrysler Hemi or Crane 99947 retainer; standard VW locks.[/TD] [TD]Use Precision 85038 guide and grind out seats as necessary. Shim rocker stands to accommodate .040 inch longer Volvo valve. Grind VW valvestem to Volvo height.[/TD] [/TR] </tbody>[/TABLE]
