Thread: Popping sound

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yes the cam and springs match, we bought them at the sametime. I'm not opposed to readjusting the valves so we might check that

my mistake, they are 1/2 turn. The more i thought about it i remembered doing 2, 90 degree turns per valve

was this ever resolved, I have read in other forums about comp cams core quality and how it relates to excellerated lobe wear. Any new updates to this problem, To me it sounds like a timing and carb issue, good place to start and check before ripping the motor apart. Another trick for testing the cam is mark a black line on the pushrod tops below the rocker, fire the motor up and have someone verify that the pushrods are turning, most cases if the lobe is gone the pushrod will not rotate.

we gave up. the cam hole was about 1/2 inch off center of the crank hole in the block. the carb was also bad and had shavings of the rod bearings running through the engine, not so good.

You might want to try going up jet size or two.

Yep Didn't read the second page.