The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 What's going wrong inside my 350?

burnin oil · 01-08-2019, 04:28 AM

Surprised no one mentioned this. Make sure that the valves arnt set to tight. It is really easy to do on a hyd cam. End result is a valve that doesn’t seat completely, if at all, and vacuum issues. I almost bet that one or two are tight and that is why you think the carb and dizzy need tuned more.

For the knowledgeable gear drive guys. Isn’t there a possibility of block interference with gear drive on some blocks? I could of swore I read that somewhere. I always just ran double rollers and never gave it much thought.

01-08-2019, 04:28 AM	#94
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,919	Re: What's going wrong inside my 350? Surprised no one mentioned this. Make sure that the valves arnt set to tight. It is really easy to do on a hyd cam. End result is a valve that doesn’t seat completely, if at all, and vacuum issues. I almost bet that one or two are tight and that is why you think the carb and dizzy need tuned more. For the knowledgeable gear drive guys. Isn’t there a possibility of block interference with gear drive on some blocks? I could of swore I read that somewhere. I always just ran double rollers and never gave it much thought.