Oil viscosity

Billbo said
Hi everyone. Just looking for any high tech info. I scored a free box (3 bottles) of Nulon oil 25w60 street and track. Premium Mineral 25W-60 Street and Track Engine Oil. This stuff has the most zinc additive I have seen in engine oil. 2300 ppm! All sounds good for flat tappet cam shafts. But, the thick viscosity concerns me. Will this put uneccesary strain on the distributor drive shaft since this oil is quite thick. Does anyone use such high viscosity oil on their small block? Or shall not use it at all.
Regards
Billy D.

Mineral oil? That's what Johnsons Baby Oil is. Why would you want to put that in your engine? Who cares that it has 2300 ppm. of zinc. Use some quality oil with zddp like Brad Penn or some regular dino oil and a additive like Rislone to get the zddp you need. Here's a link:https://rislone.com/wp-content/uploads/2014/11/4405-Tech-Sheet.pdf