Rebuilding 72 autostick engine

[santindl1]

I'm researching rebuilding a '72 autostick 1600 and I was talking on the phone to a tech guy at Gene Berg. I was initially planning on building with 90.5mm pistons/cylinders, 78mm stroker crank.  This person had a lot of knowledge about autostick and said that I needed to keep the stock cam to create enough vacuum for the autostick.  He actually suggested that because of the stock cam there wouldn't be much benefit going with the stroker crank and he suggested I build a 1776.  That would save me some $$$, but I did like the idea of the increased low end torque from the stroker crank. 
Does anybody have any experience with using a stroker crank with the autostick?  I'm sure the vacuum thing is an important consideration for the performance of the autostick.
Any information that the forum can provide will be greatly appreciated.
Thanks

[68autobug]

Hi
I'd go for the 1776 engine with the standard cam..
as you know vacuum is very important to the autostick but
I have seen autosticks with twin carburetors.
but they may just put up with the vacuum problems, like changing back a gear etc..
as the change in vacuum in the carby changes all that..
The autostick is a VERY fine tuned piece of machinery, it seems that if You change anything virtually, it can cause problems... even the size of the washers on the ATF fittings etc.. size of ATF hoses and fittings internally..
its a fine balance...

Having a Bigger engine would chnage that balance..  also it only has a 180mm clutch plate .. so that is something to consider too..
although the clutch is either IN or OUT so No slippage normally.

I hope that helps

LEE

PS: maybe someone on here may have done some mods to their engine..