Almost anytime you can have a straight shot @ the valve the better. A side draft intake will give you a straighter shot @ the intake valves.
Just look @ modern motorcyle cyl heads w/there pretty much straight ports to the intake valves.
1000 Cc/1.0 liter bikes making 180 HP.
You might want to look into side draft throttle bodies & fuel injection.
Mike Kirby makes & sells TB's & mechanical fuel injection.
Example:
http://www.borla.com/products/induction/ThrottleBody/ThrottleBody2900.htmlMy friends sells TWM throttle bodies & SDS fuel injection systems if you are interested.
I have an SDS system for my inline, not running, but I got it.
With F.I., it will make tuning much, much more easy do so.
Don't get me wrong, Webers are great, but they are old school, you need a lot of time & patience & extra jets, emultion (SP) tubes etc to tune your engine. That can get a little spendy.
W/an SDS sytem, it's is really easy to opperate, not laptop needed.
http://www.sdsefi.com/If you want to learn more about the TWM throttle bodies, & the SDS fuel injection & possibly the J&S safegaurd
http://www.jandssafeguard.com/You can contact my friend Ray.
Here is his website:
http://www.american-pi.com/corvair/corvhome.htmlMBHD