Greetings George.
The heads are Australian 2V open chamber (74cc) with 2.070in intake and 1.650in exhaust valves. I think the compression rate is 8.5:1.
The camshafts listed are both retrofit hydraulic roller cams.
I'm considering switching to roller cams with roller lifters and roller rockers. I'm also considering the Rollmaster CS10065 Ford 351C billet roller timing set with torrington bearings and 9 keyway adjustable crank sprocket.
The exhaust is stock with front and rear mufflers:
The specs for the Comp Cams springs:
Number of Springs Per Valve:Dual with damper
Outside Diameter of Outer Spring (in): 1.509 in.
Coil Bind Height (in): 1.175 in.
Spring Rate (lbs/in): 347 lbs./in.
Inside Diameter of Outer Spring (in): 1.125 in.
Inside Diameter of Inner Spring (in): 0.697 in.
Cheers,
Robert
