I just sold my 68 390 AMX and it had a Centerforce II. It had the weights on the pressure plate but a standard type disc without the metallic pucks. Easy pedal and smooth engagement with no chatter and while that engine was no powerhouse it handled it easily.
Had a hays street/strip diaphragm in the GTO and it was ok.
If I ever get another stick car I’d probably get another Centerforce.
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68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH
New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html
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