Ran my 499 a tad loose at .0027 to .0028 on the mains, rods about .0025 to .0027 aluminum rods. 20w50 oil, safest for the power level you will be at.

Last edited by gregsdart; 09/04/09 03:24 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky