Quote:
Originally Posted by RichardJ
Agree with Wrenchbender's post.
The heads are interchangeable as mentioned, but make sure you use the right plugs. Around '70 they switched from gasket to tapered plugs with slightly different reach.
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Yes I have the tapered plugs I found the plugs in the old head did not wrk with the new one. I’m going to change the thermostat form a 180 down to a 160. Timing is set at 6*. Exhaust manifold is brand new and the intake manifold has been sand blasted. Where I’m stumped is why the sputter and black smoke once its up to temp and it only does it when I’m first pressing the accelerator on take off
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