5.0 block dilemma

[coupster]

Well, good, I am seeing this the right way...so Maybe I do have a cast gear...I will post pics if I can get home before it gets too dark. I better get off this computer now and wrap it up. Thanks again guys...

[coupster]

YEAH BABY! I had success pulling a pushrod on #7. Peeking down the hole w/ lifter & rod out of the way I could clearly see the tip of a dogbone above the lifter!  TA-DA! It's a roller cam and what I believe to be a cast Iron gear on my distributor! EEK! So my suspicions were right...they are incompatible! This would munch the cam in very short order! I could change gears, and then put a pertronix on this distributor, but I am now going to recommend a steel gear duraspark distributor like I originally planned. Steel gear & roller cam= good. Electronic ignition good. I think the difference in cost to retrofit the current dist. would be only slightly less than going duraspark. I guess I will still have to pull distributor, R&R pump shaft & pan,  replace coil, dist, and install associated wiring and then I will be good.

Thanks to all for helping to solve the dilemma...will update as more happens.