Thread: Newbie question

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Ok, I have a 1979 Cutlass.
It has a 305, 4bbl and its giving me a headache(*what else is new*). lol. My question is.. What is the NORMAL oil pressure for a STOCK 305. And the fact temp.. This car came from New Mexico.. I am in Canada, I only drive it during july, aug. and sept. I'm not sure why but the previous owner had a 193 thermosat in there. If I put in a 160 is that to low? I was told that if the thermostat opens up to early, it can cause sludge and carbon build up.
I am running 10w30 and with the engine sittin at 190 it has about 20 PSI, Cold start 40-45. Here is what I cant figure out.. I just did the carb over.. It runs fine without bogging.. A little on the rich side by the smell of it.. It WAS surging when you hold it at a steady speed so I disconnected the vacuum to the EGR valve.. it stops surging.. However.. it now pings. Only under 1/4 throttle, and only when she gets past 150* Shoud I just advance my timing a degree or two to compensate for the EGR? or replace the egr before anything and see what happens.
ANy good results to switching to an HEI distributor on a factory 305?
I know thats alot of Q's... SOrry bout that.. I'll try to put them in different threads next time.
Thanks for the help