While looking for a knocking noise late last year, I removed the cams and rockers and sent them to Performance Developments to be checked out. For whatever the reason, the rockers were out of spec - different lengths most likely due to resurfacing and re-hardening. Anyway, while Neil Harvey and I were talking about cam designs, he said that he has designed a cam that is made to take advantage of the similar mods I have installed. So I bought his cams.
They are .492 intake lift and .470 exhaust lift. The .050 duration is 246.2 intake and 233 exhaust. Let's see what happens.
If anyone would like a set of Dougherty GTII cams, PM me.
