Quote:
Originally Posted by Greg Hill
It's not a 780 Holley!
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Got that right Greg !
The OWA4 /OWM4 is a Motorcraft 4300. A temperamental sumbitch of a carb that works good with a stick and fair on a 2 step automatic . unpredictable on a foot brake .
Most Ford 351 racers run the Holley where it's accepted as a replacement and take the HP ,but a few stick racers run it successfully.
Deuce Coupe has the correct info on the sizes and GTX John is right ,Thompson did the carb I ran on my D/S Automatic '70 AMX, Worked as good as you can get from that carb.