I JUST GOT MY 347 BACK IN MY CAR AND IT WON'T IDLE AND I NEED SOME HELP. I TOOK THE ROLLER CAMSHAFT OUT AND DUE TO MONEY RESTRAINTS COULDN'T GET THE NEW ROLLER CAM I WANTED. SO I WENT WITH A HYD FLAT TAPPET CAM. NOW MY PROBLEM IS THAT THE CAR WON'T IDLE AND SEEMS LIKE IT IS RUNNING ON LESS THAN 8 CYLINDERS. I'VE CHECKED ALL VACUUMS AND THEY SEEM CORRECT. SINCE I CHANGED THE CAM TO A NON ROLLER DO I NEED TO CHANGE THE COMPUTER TO A NON HO COMPUTER?

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Check firing order/timing.

 

try taking off the caps lock

 

+1

 

H.O. cams and stock 302 cams have a different firing order as said above. I would try that first.

Kev

 

Thanks for all the help guys i did have to change the firing order and also the TPS needed adjusted. Now I am replacing the flywheel and balancer due to misinformation, thank god I didn't drive it for to long with the engine unbalanced

 

Did you 50oz on 28oz motor or visa versa?