Ok so I think I dialed in my timing. I have 12 initial/ 20 mechanical/ 10 vacuum. I have it on ported vacuum. I don't have a pop through the carb anymore but I do have a breakup during acceleration , it seems as though it kind of clears up when secondaries open. I have 18" of vacuum at idle around 800 rpm. I changed my distributor springs back to the factory Unilite springs which brings advance in at 1000 and all 20* in at 2500 rpm on a two stage type curve. Unfortunately, I'm starting to have a ticking noise from driver side valve cover now..... I'll be pulling valve cover and checking the rockers to make sure they are moving evenly. I think I should go back trough and set preload . I thought cam breakin went well.
Make sure all the push rods are turning. If you see a push rod that isn't, the lifter isn't either, and that means death to that cam lobe.
Ok I'll make sure I take note of that too. What causes a lifter to not turn or to turn? I hope it's not an issue, Im sick of pulling this engine apart. It's taken 8 years to get it to this point.
From this article, http://www.hotrod.com/articles/check-flat-tappet-lifter-crown-lobe-taper-lifter-bores/ "On a flat-tappet, the cam lobe must be ground with a slight taper. The “flat” lifter should actually have a slight crown on its face (the bottom end that contacts the lobe). The lobe taper and the lifter crown together cause the lifter to slowly rotate on the cam lobe as the cam itself rotates, preventing scuffing and helping to distribute valvespring loading over a larger area to extend the life of the lifter and lobes. In short, if the lifter doesn’t rotate, the lifter and lobe will fail."
Ok that's interesting. Thank you for your help. I'll update with my findings tomorrow. Fingers crossed all is well.
So I pulled my driver side valve cover and watched the pushrods, all are spinning but one is spinning twice as fast as all the others. I rechecked all the preloads and they seemed fine. I did find that after I readjusted preload that I had oil squirting onto my inner fender from cylinder ones rockers... no other cylinders were doing that . Not sure why it still has lifter noise but I guess I'll just keep driving it. Thank you for all your help.
The Edelbrock Performer heads are notoriously noisy. is it really objectionable, or is it just clicky? http://www.v8buick.com/index.php?th...plate-adjustment-question-please-help.318267/
It's not bad just clicks, just wanted to make sure nothing was disintegrating. Thanks for the link, I read through it a bit.
