REMEMBER. all octane ratings at the pump are + or - 2 to 3 percent. In most cases it is on the minus side . You can be paying for 91 octane and getting 89. I just started using a octane booster on my GTO at my last fill up a few days ago. I always fill up when at 1/4 tank. I started to add about 1/2 pint of Lucas Octane booster with a full tank. Several years ago gas stations in Connecticut were fined for selling gas that was lower then the advertised octane. Now they have a sign on every pump that states OCTANE RATINGS are Plus or Minus 2 or 3 percent
447 CI forged stroker [ 7.3 liter ] 6 Bolt main caps
Holley Modular Mid rise Intake Manifold.
F1 Procharger ,
Just way too much to list,
Last edited by LOWET; 02-05-2008 at 11:33 AM.