Thread: 71 Ford truck 460 timing

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Originally Posted by IC2

I do agree with the later '70s retarded camshaft in early 460's. It does entail a front of the engine tear down and a new pair of timing gears and new chain - which if it has over 50K miles, probably needs anyhow as the OEM's are 'silent nylon'. From doing that mod to a '76 F250 and a '79 F350, I can assure you that it does make a difference in gas mileage and even better, performance. Set the timing then at 9-10 deg BTDC. Also, trash that bitty 475/525 cfm OEM carb for something that has some venturi area so it can breathe a bit better - the mid to late '70's heads aren't the best

The carb is a holley 3310 750 cfm