Quote Originally Posted by techinspector1 View Post
OK, if you are with me so far, let's move on to the intake manifold. The absolute best intake manifold you could choose for a street motor is a high-rise, dual-plane design (NTFDAY might argue with me about that and he has valid reasons). When Chevrolet designed the Z-28 5-liter motor for introduction into the 1967 model year Camaro, they contracted with the Winters Foundry to cast the all-aluminum intake manifolds for the motor. It was a tall dual-plane design that proved so popular (read effective) that Edelbrock, Holley and Weiand copied and began production on their own part numbers for the aftermarket.
He's right about that. I prefer an Offy 360º which is s a single plane medium rise manifold with a split plenum. You basically get the best of both worlds for the street. It more or less is a matter of choice or opinion and I have experience with an Offy. Someday if I get ambitious I have a dual 4 Offy 360º setting in the garage that I want to put on the Vette, mainly for looks as IMHO nothing looks better than dual quads unless they're sitting on a blower.