Slant six single, to slant six double.

Here is a rev pattern cam that DID work. 455 Pontiac, 3950 lbs [ without driver ]. 3.31 diff. T400, 2800 stall c'ter. Street radial tyres. Factory Ram Air 4 intake. 236/230 @ 050 cam, 112 LSA, Hi Port Alum heads, 850 TQ carb, smooth idl, headers. Ran 11.78 @ 115 mph.

This was the FIRST TIME the driver had drag raced. No tuning was done at the track such as carb or ign timing adjustments, or different shift rpms. Just drive up to the line & drive....
A later RP cam 254/248 @ 050, with a Victor intake & TQ ran 119 mph. Once again, no trackside tuning & driver had little experience.