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Computer Controlled Vehicles: Modified computer chip may be required to compensate for low vacuum.Lobe Separation: Intake: 107 Exhaust: 117.Advertised Duration: Intake:288 Exhaust: 298.
#CAM 350 SBC PRO#
If there is soimething in there it is at the exit from the drive.For sale is a BRAND NEW Engine Pro MC1988 Hydraulic Flat Tappet Camshaft! I have checked everything up to the Y pipe (in fact I repalced the exhaust manifolds and risers when I rebuilt). It is not likely the exhaust is blocked but it is remotely possible. When I rebuilt the engine I replaced them.
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Could this be the problem? Should I get a flat gasket which has a web between the sides of the carb to garantee separation of the sides? Any other inpuyts would be appreciated.By the way, on the exhaust thing, I was missing a flapper but the guy who serviced my drive pulled it out a few years ago. Now there can be some "mixing" of the feed from the two sides of the carb. What this does is raise the carb 1/2 inch from the machined mounting surface of the Edelbrock. I bought a replacement gasket like it when I rebuilt the engine. On the old cast iron manifold there was a 1/2 inch thick gasket completely open between the sides of the carb. Basically, one side of the carb feeds 4 cylinders and the other side the rest. With the Edelbrock dual plane intake I put on last ytear, this should be helpful no matter what.One other thing I have noticed while tearing down the engine to put in the cam is that the Edelbrock Performer (2104) has seperation between the dual planes. I have decided to put in a bigger cam just to try it out. It is obvious that if the rebuilder did give me a automotive engine instead a marine, the cam would be much smaller. Thanks and I do owe some of you for all of the typing. 050" lift lobe #5207260 Degrees exhaust duration measured lift (advertised duration)Lift.432" intake valve lift with 1.50:1 rocker arms.288" intake lobe lift at the lifter.444" exhaust valve lift with 1.50:1 rocker arms.296"exhaust lobe lift at the lifterTiming:110 degrees intake to axhaust lobe centerline separation angle in camshaft degrees108-110 degrees after to dead center intake lobe centerline position in crankshaft degrees110-112 degrees before top dead center exhaust lobe centerline position in crankshaft degrees************************************************You owe me big time for doing all this typingīoy, you guys came up with more specs than I ever expected. 006" lift (advertised duration)212 degrees exhaust duration measured. 050" lift lobe #5440250 degrees intake duration measured. Competition Cams XE 250 H Xtreme Energy HydraulicDuration:206 degrees intake duration measured. 050" liftLift:0410-0430" intake valve lift with 1.50:1 rocker arms0420-.460" exhaust valve lift with 1.50:1 rocker armsTiming:109-110 degrees intake to axhaust lobe centerline separation angle in camshaft degrees108-110 degrees after to dead center intake lobe centerline position in crankshaft degrees109-112 degrees before top dead center exhaust lobe centerline position in crankshaft degrees************************************************Suggested high performance aftermarket camshaft. Here is Moore's recommended specs for a stock 350 w/ flat liftersDuration:202-208 degrees intake duration measured 050" lift208-216 degress exhaust duration measured.