[Keith Tedford]

Back in '69 Nurse Chev-Olds installed a track cam and cross ram setup on a Z/28. With the stock 3:73 gears there was absolutely nothing below 4000 rpm. 4:56 gears would be the minimum for this combination on the street. The M21 might have been the ticket on the road courses but it didn't do the street car any favours. Tony Pizzi showed what terrors these cars could be on the strip when set up properly. On the stock 780 Holley with power valves front and back #73 primary and #76 secondary jets would be a good start.