two barrel intake

i have to run o.e.m. stock two barrel intake (chevy)
i v heard a bunch o different storys about wich is best to be runnin
canadian,britski, or school bus 327's
any thoughts ?:smokin:

i have to run o.e.m. stock two barrel intake (chevy)
i v heard a bunch o different storys about wich is best to be runnin
canadian,britski, or school bus 327's
any thoughts ?:smokin:

Are you doing circle track racing? If so, your rules will specify what type of intake to run.

rules only state it has to be gm cast iron intake. thats it.
everyone who runs up there has a different opinion on whats the best one to run. alot of guys run canadian gm's another group of guy swear
by a 327 school bus intake, and one guy has this thing called a britski??
so there are a few options.

Why do they say one is better than the other? If one truly offered obvios advantage, there would be no question. What type of internal modification is allowed? I wonder if talk about intakes is a diversion from internal mods that are limited by rules. If you are allowed to use a 1" spacer between the carb and intake you will gain advantage with any of the manifolds.

I've never heard of a 'Britski', a 'Canadian', or even a '327 school bus intake'. When I was doing the circle track thing, rules were specific with what type of intake it had to be - generally for the large bore 2GC or 2GV type carbs without EGR - basically this would be any 350 2-bbl from 1969-1972 (73-up have EGR). On my engine we ran an intake from a 1972 Impala. It ran extremely well for what it was, but everyone else ran one too, so there was no advantage. Anyways that was the rules at a NASCAR-sanctioned track (Tucson Raceway Park).

I can't speak for his rules and whatnot, but we were not allowed to run anything other than 2-bbl intake with 2G carb - no spacers or anything else. The only mod allowed on the carb was that we could remove the choke butterfly - all else had to be factory.

I have never heard about the school bus 327 but i have heard that a intake off of a chevy 400 small block flows more? dont know if it is true but all of the guys down here seem to run em.