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T-bird 390 By hot428ford - 04/23/2006 2:21:54 AM; IP 70.196.166.180 The cam specs from the major companys will tell you the lift & duration needing for the RPM range you'll be running . You'll need to decide the rear end gears and if your going to a manual are auto trans and what stall speed if you chose an auto .With my 4:11 rear end and a C-6 with a 3500 stall I'm running a 522 lift, 300 duration,71 degrees overlap ...Its very close to the cam offered for a 429 boss ...Ford offered a #C3AZ-6250-K for a 427 w/auto trans it had .525 lift , 290 duration , 78 overlap, and put out 425 HP ..The cam needs to match with all the other parts including the weight of your ride ...hope I could help..

This thread, so far...

Skip Navigation Links.  T-bird 390 -- Mike, 04/21/2006  What kind of 428 head? -- Gerry Proctor, 04/21/2006  RE: What kind of 428 head? -- hot428ford, 04/21/2006  RE: T-bird 390 -- Beganit2, 04/22/2006  RE: T-bird 390 -- Mike, 04/22/2006 T-bird 390 -- hot428ford, 04/23/2006

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