[Kenth]

Nice GTO!

I also became a member of the 421 GTO society this year.
My 1967 400 in my 66 GTO was in need of boring with new pistons and rings after 25+ years of duty, so I took the opportunity to put together my long overdue 1965 421.
It got Eagle full flow H-beam rods, KB Silvolite hypereutectic pistons, 1970 455 #64 heads with valves in stainless steel, a genuine old #744 camshaft from "Dana" with matching lifters and then of course the car's original Tri-Power which received #70 nozzles in the outer carburetors (tried #73 first, but they proved too rich) as well as another modified venturi cluster which received .035" idle tubes and .050" down channels.
Runs quite well with 14 in/hg @ 650 rpms in Drive. 10° initial plus 20° full manifold vacuum advance using a 1115364 unit that starts at about 7 in/hg and full advance at about 14 in/hg. The original 1116172 came in a couple of inches later wich the engine did not like. Now the idle is rock solid in D.
Too bad the season is over for this year already!