JPrevost

Okay, lets say I were to get the 330hp 350. It was dynoed with a 650 cfm carb. I'll have the 670cfm holley TB with my TBI system and SLP headers - full 3". My question is what kind of performance if any would I recieve from changine the rockers from 1.5 to 1.6?
The cam is a modern dual pattern interpretation of the old '65 to '67 Corvette 327 cam. But with more lift and duration on the exhaust side, it does a better job of clearing exhaust from the combustion chamber. Also decreased duration and lift ever so slightly on the intake side to build more cylinder pressure.
CAMSHAFT: 24502476 Lift: .435" I, .460" E. Duration @ .050: 212 degrees I, 222 degrees E

So what do you guys think? Is it worth getting 1.6 rockers? Can I put the 1.6 on the intake only or what? Sugestions...should I just swap out the cam for a larger?

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, Jon (91 RS too many mods to list), getting new engine in summer

ede

i wouldn't get 1.6 rockers just for the sake of having them. if i were buying rockers i would, if i was building and engine i would. with a .5 lift cam and 1.5 rockers going to 1.6 will only raise it to around .54. yeah it's a gain, but i doubt you'll notice any big change.

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ICON Motorsports

1st & 3rd

JPrevost

Okay, thanks for opinion and I understand but what about having the 1.6 on the intake side. Wouldn't that help the engine make higher rpm power? The 330hp vortec engine was dynoed with a 650cfm carb. I'm thinking the 670 Holley will want just a little more intake lift and duration.
What do you think?

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, Jon (91 RS too many mods to list), getting new engine in summer