rocker arm ratios

[justinP]

what are the differences in the rocker arm ratios, I've seen 1:60-1:90 and was just wondering what would be a good set.

justinP
-98 firebird

[pgriffith]

1.6 is the stock ratio. anything above that is aftermarket. Its going to increase your valve lift a bit. But I still dont think increasing lift only is going to give alot more power. Im not a big fan of upgrading the rockers on a na stock cam motor. I would prefer to upgrade cam and use stock rockers and make alot more power from increased duration. But do a search for rockers there are alot of people that have them. closing......