Quote: Basically, the stock intake manifolds are a choke point on our fuel delivery system. I don't know if overall velocity is down, but flow is up. I'm not all technical savvy about these, I can only go by hard numbers on a dyno machine.
I would have to agree with this statement. When I did my head work this winter, I work backward out and match ported the maniflds to the heads and rubbers to the manifolds and rubbers to the carbs. There was a lot of material that needed to be removed from the manifolds and the rubber boots were even worse, very restrictive and horribly mismatched. These new manifolds are certain to be an improvement over stock. A dyno between between ported and freds would be interesting. Does he have anything test results?
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
