Originally posted by drumsk
I have excessive clatter on the #3 intake or exhaust valve to the point where the engine dies for a second. I tried to set the rocker to specs and it goes a way but comes back...... any ideas what this might be..... the head was rebuilt 5000 miles ago.... new roller lifters and rocker arms and push rods

The vehicle is a 1988 formula 305 tbi and help would be great
Kenny

p.s 60 psi when i start the pig and between 15 to 20 at idle a 500rpm which has to be raised to 600 rpm

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Check the studs like tech said, but are you checking the compression with the motor running, or am i reading it wrong?