Help for timing advance on a porsche 911 T 2.0

[porsche911t1969]

hello everybody

i have a Porsche 911 T 1969 2.0l with two carbs three barrels weber 40 idtp , a pertronix flame thrower coil, a Bosch distributor ''Yellow tag'' 0231 159 002 with the ignitior system, bkzh unit and a kit JE PISTONS in 80mm
( ration 9.5).

I have two questions:

I would like to know which value of timing advance do i have at 900-1000 RPM for working perfectly ??

which spark plug Bosch do i install in my engine for working perfectly ??

excuse me for my english but i'm french

thanks for your answer

regards

Jérôme

[Steve@Rennsport]

Jerome,

What octane fuel will you be using? 95 or 98 RON?

[porsche911t1969]

hello steve

I put 98 RON in France.

Thanks again to spend your time to answer me.

Jérôme

[porsche911t1969]

In france we have only 98 unlead fuel for our classics cars.

I put this unlead 98 fuel on my porsche

thanks

[Steve@Rennsport]

Hi Jerome,

Set total timing to 34 degrees at 6K RPM. Use Bosch W6DC plugs at factory gaps (.032).