1990 Honda CRX 1.6i-16V DOHC (D16Z5) ignition and cams timing

[dochmees]

If I lower my engine head about 0.5 mm, that is I raise my compression rate from 9.5:1 to 9.95:1 and also will do some port polishing and valve job, how should I set ignition timing and cams timing? I will install of course adjustable cam gears but as we dont have any kind of dyno possibilities I have to tune it just by taking car to action.

Should I retard the ignition a little bit as the engine head will go a little bit lower than in stock? And also because of lowering head there will be then changes with cam settings. Should I retard exhaust cam timing and advance intake timing? Does enyone know stock CRX 1.6i-16V DOHC (D16Z5) cam angles?

Any sugestion concerning this matter is very valuable.:

PS! Basic tuning is already done - 4-2-1 header + sport exhaust system, CAI, lightweight pulley.

[Blaze]

I wish tuan was still aroun cause he'd still know. take it to get tunned and run some higher octane gas to prevent detination.

Just my .2 cents

Blaze

Ps sounds fairly compelx to me good luck though