Gas Research sc400 vs sc440?

[Anonymous]

I have both sitting in my bedroom. Which one shoud I use on my alloy head 250 crossflow?

Its going to be stock except for roller rockers, ed falcon plenum modified to suit, extractors and 2.5 exhaust.

My goal is for best performance but still with ok economy.

My inclination is to go with the 440, simply because its bigger, but will the motor be overcarbed?

Would I get the same performance out of the 400, but with better economy?

thanks

 

[Anonymous]

run the 400 n/a then give it to me and bolt on the 440 with the turbo


and considering alot of ppls run 450 holleys n crap like that it aint that big


basically keep both till you are finished with the engine setup and have it tuned properly then you will know what is the best choice