I run the HC-03 in the '71 455 HO engine that I have in my '64 GTO. Pretty big cam for a street car.
244/252 @ 050, .500/.504 lift with 1.5:1 rockers, I use 1.65:1 rockers for .550/.554 lift.
The HC-03A is just an updated version, I'm sure the specs aren't really all that different.
__________________
1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/3.08
2002 WS6 Convertible LS1/4L60E/3.23
1966 VW Type 2 Single Cab Pickup 140hp 2276
1956 VW Type 2 Panel Van 36hp 1200
1957 VW Type 1 Beetle 180hp 2276
|