The 331 puts out 401 HP @6500 and 376 on torque. The cam has a definate lope. When warmed up it'll idle at 700, nice sounding, the sound matchs the looks of the car. It doesn't spend that much time idling though! The perfromance of the cam is outstanding, pulls hard all the way up to shift time.
The cam has a 110 lobe center, duration is 292/298 and at .050 its 248/242. With the 1.6 rockers the lift is at .499, .512. At 600 lift, before porting the heads flowed 219 int., 156 ex., after porting 231 int., 181 ex. This was pocket porting only. All the machine work was done at Valley Balancing with Ken Boyd at the controls. (a little plug for Kenny)
I had another cam in the motor at first. It was a comp cam with a 106 lobe center, part number 31-641-5. The motor sounded like a drag car delux. (My buddy Larry Giley who drags his Dodge up at the Sacramento raceway will verify the cars performance). It wouldn't idle under 1300. Had a major problem with the cam, it ate up a few distributor gears. I thought it was the high volume oil pump so I changed that pump to a standard volume, changed gears on the distributor, guess what, another chewed up gear. So after many calls to comp cams I finally talked to the right guy and he tells me they are having an incompatability problem with that cam and MSD ditributor gears. Oh boy, I was pissed. So now the whole front and top of the motor comes off and redid it with the crower cam and new solid lifters. No problems now what so ever!! I'm glad that it happened in a way because it made me do some more serious research on cams using desktop dyno. I bet I ran forty different cams through. You would think the bigger cam would do better but NO NO NO, for this motor a smaller cam made way more HP and torque. I'm real happy with my set up. Geez I guess I got a little long winded here, oh well.
Mark