Quote: Degreed the cam in at 104.5 (162 .05 after intake high lift + 47 before intake high lift = 209 /2), which is 4 degrees advanced from the cam card but it was set at 108 and said it was also 4 degrees advanced so I guess it’s in at 7.5 degree advanced. Machinist thought the cam was too big so he wanted me to install it at 104 to increase the cylinder pressure and get it to make good power down low. (.680/.680 284/292 @.050 112 lobe sep & 108 Intake center line
I am considering a cam with about the same duration for my new motor. I think the 13 CR should be enough for that cam (more might be better), mine will be 13.4 so it is close to yours. I do have a 3 speed trans so I am going for more hp rather than midrange torque. A good race car has 5500-6000 converter anyway! LOL My old motor had more torque than it needed any way (279/287 at 0.050 cam).
With you installing it at 105ish with 112 LSA that is advanced plenty, I might have only put it at 109. Let us know how the PG does at the launch. Didn't you have a little less CID last year?
