Quote:
Originally Posted by Ashen L99
You need to step up to 1 7/8 headers. Motor needs to breathe especially with a cam where you will turn more RPMs. The ole cleeter cam is not rowdy enough to “beat” on the valvetrain. You could put in a thinner head gasket, PTV should be just fine. The Under drive is up to you but it puts more strain on the battery. Personally For 5hp it’s not worth it.
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I'm actually going to get the tick polluter stage 3 cam, as far as the headers all the dyno test videos I've seen on the LS3 that the 1 7/8 really doesn't give much of anything and you actually lose a little torque down low. Unless I'm going big cubes or forced induction I'm not giving up much of anything with the 1 3/4 and more torque down low. I want to change it the harmonic balancer anyway because they are crap and wobble , so might as well do the UD pulley.