M-1 Intake Manifold

I'm running a flyweight car with a 360, small solid roller, 5300 converter, 4.3 gears, I run it from 5000 to 6800. For my own reasons I have just taken off a single butterfly injector running methanol and sticking a toe in the water with a petrol carb. I reckon I will just use it as is and if I think it's lacking I might try a tapered 4 hole spacer.