Exactly. No messing around with advancing the cam 4° further with an adjustable timing set. Is it just that Mercruiser grinds their cams differently?

I’m not being the voice of opposition here… more on the side of reason…

You’re making this too hard on yourself. That is a stock cam. Grab the stock timing set and put it in and go. Or install it dot to dot and zero and be done.

I completely understand the want to get the math right, but for your build having it advanced or retarded by a degree or two isn’t going to make any noticeable difference in how your engine performs. The season is going to be done soon… get your boat back together. You said you got two other cores to play with. I’d mess around with cam math on those instead of delaying with your boating time.

Just some helpful advice.

TZ

[QUOTE=TomZ;4802522]I’m not being the voice of opposition here… more on the side of reason…

You’re making this too hard on yourself. That is a stock cam. Grab the stock timing set and put it in and go. Or install it dot to dot and zero and be done.

I completely understand the want to get the math right, but for your build having it advanced or retarded by a degree or two isn’t going to make any noticeable difference in how your engine performs. The season is going to be done soon… get your boat back together. You said you got two other cores to play with. I’d mess around with cam math on those instead of delaying with your boating time.

Just some helpful advice.

TZ[/QUOTE

yep see post 3............

I hear you guys and can appreciate what you're saying, but if I did that I'd have been 8° retarded right? Not a degree or two. She's not going back together until I figure out the right answer.
It's more important to me in the long run to get this figured out right than to get it back together.

Id go get a stock timing set put it in and recheck your events,

Tom paid you to say that didn't he? LoL I have a couple that I can throw in it.

Someone give me a quick summary. Too much reading.

Why can’t this cam be installed 109 icl (6* advance) to 111icl (4* advance)

mcollister explained how snd why to do it real well

i lose attention to long posts. Be easy on me

I missed the Evelyn Wood speed reading course........

I don't think anybody said it couldn't. It's the why it's not at approximately the correct or at exactly the correct advance when it's dot to dot like other cams.

I’ve run into many that aren’t where they should be.

Even pre internet was common knowledge to degree in cams. I would say most that are off, are retarded. OE’s loved cams in retarded * positions. Smoother idle and emissions I guess.

Most off the shelf performance cams are ground 4* advanced for a reason.