Best 273 and 318 builds (NO 360's please)

dodgetkboy78 said
The 268S cam is a great choice, but small port heads perform better with single plane intakes. Think stock 273 4bbl, marine manifolds, Holley street dominators, Edelbrock streetmasters, or a real find, the torker 318.

IMO at least, I just have gone dual plane to single plane so many times, and said WOW!

moper said
the truth is the stockers dont have enough plenum for a good turn

How good (or bad) does this manifold look?

It was a standard (small port) 2bbl manifold that was milled out and had a 4bbl carb flange attached to it. It was never given a decent run as the the only motor is was ever run on had a faulty carb, cam that wasn't dialed in properly, and rings that weren't bedded in properly either.

rumblefish360 said
Vb, this build of yours is coming along very nice. IMO, I'd go for as much compresion as pump gas will allow. The cam is big enuff to use a good ratio.

what do you reckon the max static comp my combo will be able to stand (on pump gas) would be? Our best pump gas is 98,(ron) but a mate was telling me at the pub the other night that US octane ratings on gas are in fact the AKI which is 4-5 points lower the the ron. Is this correct?