400ex timing

[Brehmmotorsport]

Does anyone out there have any info on what you have to do as far as timing when it comes to doing any big bore kits in relation to what type of gas you are running. We want to do a bore kit and need any help we can get. We want to just run high octane pump gas though.

[TC426EX]

Timing should stay the same as stock. Line up the "T" mark on the flywheel and put the lines on the cam sprocket flush with the top of the head (with the vertical line facing up) and youll be all set