The Jalopy Journal
The poster that said jack up the vehicle to unload the suspension was on the right track. If you can get the vehicle safely up on stands, have a...
Most likely its a factory cam core thats been reground. Many cam grinders offer this service so hopefully someone here might recognize the numbers...
My 1955 F100. Blown 473 (460) , toploader four speed, 9 inch rear. Owned it for about 19 years. Street driven regularly.
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The Jalopy Journal