Tech,

I got you now, I understand completely and I will just have my brother rebuild the Quadrajet. Now what do you know about a cracked flexplates on a Chevy 4.3 with 4 speed auto. Making an hellva cracking sound at idle and under acceleration. If you back off the gas no cracking sound. RPMS are normal and sfift is normal. Torque converter is new and so is the tranny that shifts PERFECT.

Jeff