I've had more than enough experience with these conversions and won't recomend them to anyone unless I hate them.
The motorsport manifold is a very bad design, it flows uneven(1,6 run real lean,2,5 run about right and 3,4 run rich). Also it has way to much surface area below the carb and when cold almost all the gas cools rapidly and won't run with lots of backfires(better have a fire proof air filter, you'll need it).
Don't do it, you will def. regret it, get dual webbers if you want to scrap the fuel injection. You will get as good a runner as you had with the fuel injection and can do more with the engine overall.
> Any body had any experience with the putting
> a 4bbl intake manifold from Arizona Zcar or
> Motorsports. Any advantages over fuel
> injection. I have many bad sensor problems
> and don't have the money to replace all of
> them. I have 3 4bbl carbs to work with just
> need a manifold and some other things. Need
> some help deciding. Thanks. Sam 75 280z