8Stack efi & manifold vacuum pressures

[bobcowan]

Originally Posted by Dwight

Dimis
Thanks


Bob

the composite gear lasted 13,000 miles and three teeth broke off. Had to called a tow truck to get us home.

Lunati make a new steel gear, just came out this year, it's the lastest and greatest but it only fits stock distributors not the MSD.

Coach does not want to change the cam but I think he will have to.
He has been talking to Keith Craft, Comp, Lunati and MSD about the problem.
For now it's a new composite gear.

If anyone is using a Comp cam in a 351W motor that was manufacted in 07 -08 I would pull it and check. Some have failed within 3,000 miles.

Dwight


Dwight

The difference between the stock distributor and the MSD is the size of the shaft. I believe the MSD is larger. Buy the gear for the stock shaft and have it reamed to the proper size.

But, if it were my engine, I'd get rid of the cam. Since it was not manufactured properly, it's always going to be a problem. It will probably eat the new MSD gear, too. For reliability reasons, it would have to go. You're probably talking about $300 and one afternoon's work.