a 750 is too big for a 318.
But for a stock engine, even if you gave the slanty exactly as much air as it wanted, how much power is that and at what mph will you feel it. And what are you gonna have to do to get that theoretical power?
Well on a good day, it might be theoretically possible to get say 5% or 7 hp at say 3800rpm. I'm guessing. But you are gonna have to give it at least a free-breathing exhaust and a distributor tune.
Ok next, with a 2.45 rear end, 3800 in first gear with an A999 trans is about 43mph.
That will change your zero to 43mph ET by how much? IDK, I doubt you can measure it.
So let's see; the cost of the carb, the intake, air-cleaner, linkages, etc and a hi-flow exhaust, and a tune comes to.......IDK say $1500, and the result is an immeasurable change in ET.........
What am I missing here?
Oh it's not for a car, it's for a rat-rod; I see.
Well then, anything goes it's your cash make it work,HappyHotRodding.
But I can tell you this; even the primaries are more than the stock slanty can ever use, and IMO trying to tune it will give you fits .