I bought a 1974 plain jane sports coupe comaro when i was stationed in North Dakota, the car ran so bad i had to rebuild the top half of the engine. i installed a 454 comp. cam and edelbrock RPM intake. i changed the sotck heads and put 441 head with the 2.02 intake and the 1.6 exhaust, installed 1.6 full rollerized rockers. i had the heads build like Z28 heads.My Sgt. also rebuild my 750 rochester quadrajet; he had it re-bushed and changed the metering rods. when i put every thing together and timed my timingto the 8degrees BTDC it seems to not want to idle. i have had to advance the idle to about 25 to 30 degrees BTDC for it to move in any hurry. i was wondering if any one has every ran in to this problem and if it is normal, or if in my limited knowlege did i do something wrong. could you please help me out, thanks inadvance

 

I like 18+/- initial but more important you need to set the total at 38 then tune the initial if need be. post up if your not sure how to correctly set total.

 

what i dont understand is that i havent really changed a whole lot, the fatory setting is 8 degrees BTDC. why do you like the 18+/- ? i just dont understand and would you please try to exsplain what you mean by the total @ 38, i am a little unclear about that as well. thanks in advace

 

i have my396set @ 12 BTC (intial) and a total of 36. My idle still sucks until the engine is warmed up good. The biggest problem i have is the the #8 cylinder misfiring. it doesn't miss all the time. it will run like a champ for days and then all of a sudden BAM skip on #8, F@#King mallory ignition.

hope it helps
scott

 

thanks gentalmen