I'll be having my extra stock '65 Tri-power I just purchased and sent it out for port / gasket matching and general porting. The company uses a new process I had never heard of called: https://www.extrudehoneafm.com/
Check out thre videos, it's pretty cool.
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1965 Pontiac GTO
455/469 w/ #48 Heads, '65 Tri-Power
9.25:1 CR
Stump Puller Cam
Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"
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