Well I guess I will start at the beginning, I built a small block 350, to go into a 78 monty. Well that plan fell through and needed a motor for my S10 blazer. well its in, but it wont Idle The manifold vacume is only 15 kpi and my map sensor is telling the Ecm that it needs more fuel. The cam I have in is not saposed to cause a lopie idle but it does. I know I dont have any vacume leaks cause I checked that with a smoke machine.
The lobe seperation on the cam 110 and the lift is .458 at 284 deg. So as u can tell I dont know if I should advance or retard the cam timing. What kind of vacume should this cam produce?
Any info would be a big help.