timing a 440

[70bee]

I put a 284dur 484lift 108centerline cam in my 70bee and the timing mark is way off. the distributor is a stock electronic, with spring kit,crome ecu.the tee shaped shaft has K13 stamped in it,vac advance.can anyone tell me what the timing should be?the car is a 70 superbee,68 440-4,4speed,3:23:1 83/4 rear. Thanks For The Help

[Christopher]

First off,I'm going to assume that the cam is installed and that TDC lines up correctly.I have this same cam in a 383 in my Dart.Now I run the race electronic dist.but you'll be OK with vacuum advance.You need to install a timing tape on the balancer,leave the vacuum advance disconnected and bring the engine up to 2500 rpm.Then set the timing to between 34-38 degrees.Then reconnect the advance.

[This message has been edited by Christopher (edited September 30, 1999).]

[Orange Bee]

I know this may sound strange but, I once changed the cam in my 6 pack Superbird and found that the keyway in the crank had sheared and the balancer hammered away at the crank causing a "wedge" type wear situation. You could time the engine, drive around the block and the timing would be 50 degrees off! We got a new keyway and damper and it "fixed" the problem. It's something to check. I'd set the timing to where it run best and starts well for the initial with a max of 34 degrees without the Vacuum advance connected.