Quote:

About 5800 It seems like the car flattens out at about that and any more is a waste.



Have you looked at the valve springs... a stock engine
will rev higher than that.... also whats the weight
of the car.... I'm sure you would still need a dual
plane to get the torque... you might want to advance
the cam for added torque but then it takes away the top
end rpm... just thinking out loud