Looks like I am now all sorted out as far as my 7 FAs go, ranging from a '59 to the reed valve '69. Speaking with RC in FL last nite he has a 1964 copy of 'Boat Racing' ? with a article and drawings for the Rocket pipe. Apparently the UIM back then got upset at the noise,
[Konigs were not legal in APBA, and NOA & CBF certainly did not mind] and they came up with the blanked off megaphone with stinger, which was quieter and faster. Real expansion chambers followed. I will take a copy off that article and maybe get a pair made in FL this winter.
So the FA69 should have a pair of fat expansion chambers,
the '59 and both '63s 'sticky-out' or swept back skinny megs,
and the 'Rocket' pipes on the FA64.
Over these years I see only two obvious differences in the cast iron blocks, ie; the intake manifold studs.
There are 2 types of aluminum head, one with and one w/o
off set spark plugs.
There may be as many as three iterations on the crankcases, with either Amal, Bing or Ehrenfried slide carbs.
I wonder what carb the FA64 had ? The FA69 has the big Konig barrel types.
Ignition can be Bosch & SEM geared mags, or battery/point/coil. Dieter was busy back then....
[Konigs were not legal in APBA, and NOA & CBF certainly did not mind] and they came up with the blanked off megaphone with stinger, which was quieter and faster. Real expansion chambers followed. I will take a copy off that article and maybe get a pair made in FL this winter.
So the FA69 should have a pair of fat expansion chambers,
the '59 and both '63s 'sticky-out' or swept back skinny megs,
and the 'Rocket' pipes on the FA64.
Over these years I see only two obvious differences in the cast iron blocks, ie; the intake manifold studs.
There are 2 types of aluminum head, one with and one w/o
off set spark plugs.
There may be as many as three iterations on the crankcases, with either Amal, Bing or Ehrenfried slide carbs.
I wonder what carb the FA64 had ? The FA69 has the big Konig barrel types.
Ignition can be Bosch & SEM geared mags, or battery/point/coil. Dieter was busy back then....
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