Timing and vaccuum with twisted wedge heads/cam

C0V3R

Member
Feb 14, 2003
524
0
16
Australia
Trying to tune my new motor, and had a few issues with the timing pointer not being in the right place. I have now reset tdc and found that the car was actually starting and running fine at 22 degrees initial (no vac advance). There was no sign of pinging.

I have since reset the timing to 16 deg which I read to be more normal. How much timing can I expect to be able to reasonably run on this motor?

Also, I am curious as to what would be a reasonable/normal vacuum reading at itdle with a stage 1 cam on a new motor like this - I am pulling around 15in hg.

(Top one here http://www.trickflow.com/product/camsandvalvetrain/track_cams/track_camsspecs_ford.asp)

5.0 roller shortblock (brand new)
TFS TW heads
TFS stage 1 cam
Weiand 7515 intake
Full MSD ignition
Edelbrock 1406
Tri-y's ceramic coated