153 That's the firing order.
624

Adjust #1 when #6 is in rock position. (That means #6 cyl rocker arms are both moving as you are turning the crank )
Adjust #5 when #2 is in rock position. " "
Adjust #3 when #4 is in rock position. " "

Adjust #6 when #1 is in rock position. " "
Adjust #2 when #5 is in rock position. " "
Adjust #4 when #3 is in rock position. " "

Adjusting it this way takes less revolutions of the crankshaft.

Only time maybe not to adjust them this way is when you have a huge race camshaft w/a lot of valve overlap.

I have never seen it writen this way in any books.

But this is the way I always adjust valves.

Same goes for those V-8 thingys. I have never seen it writen this way in any books.

But this is the way I always adjust valves.
1843
6572 IIRC SBC, BBC?

MBHD



12 port SDS EFI