Properly set up they work well withthe Rotrex Supercharger
I change oil every 5000 miles, and use Joe Gibbs Hotrod racing oil 50W50 with added goodies for wear protection. I also use Purolator Synthetic Oil filters. PSL 14610
100% synthetic media 99% dirt trapping efficiency or so they claim.
That would be 135.2 mph with 3% correction. Probably about right. I would like to check it with a GPS. It's kinda scary going that fast with that huge windshield