MustangWorks.com : Ford Forums - View Single Post - 89 GT. X-303 cam

meknized · 07-11-2004, 01:41 PM

Hello,

I have a question that some one can answer.
I have a 89 GT that has a central coast 331 with the X-303 cam. When I was putting the motor together I noticed That the muti indexed timing chain for cam degreeing was set at 6 degrees retarded. I thought this was quite odd so I called coast up and asked them about this. I thought a couple of degrees advanced was generally optimum. When I talked to them, they said that is where it makes the most power. I left it that way because they do engines more tha I but still think this backwards. The car has done a best of 12.82 @ 108.8. Maybe there is more in with moving the cam. What do you think?

07-11-2004, 01:41 PM	#1
meknized fox fanatic Join Date: Jul 2004 Location: wichita Ks. Posts: 61	89 GT. X-303 cam Hello, I have a question that some one can answer. I have a 89 GT that has a central coast 331 with the X-303 cam. When I was putting the motor together I noticed That the muti indexed timing chain for cam degreeing was set at 6 degrees retarded. I thought this was quite odd so I called coast up and asked them about this. I thought a couple of degrees advanced was generally optimum. When I talked to them, they said that is where it makes the most power. I left it that way because they do engines more tha I but still think this backwards. The car has done a best of 12.82 @ 108.8. Maybe there is more in with moving the cam. What do you think? __________________ meknized Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5 a pic A vid of a run:http://www.youtube.com/watch?v=l9JMcErxML8