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Old 01-28-2013, 05:32 PM
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Originally Posted by ryder57 View Post
Thanks for the input everyone. I think I'm going to build the 307 even tho everyone seems to hate them. This will be my first engine build I'm going to use the Edelbrock intake, Holley carb, and HEI distibutor with the 305 heads I already have. Any suggestions on a cam?
"Everyone seems to hate them"? I don't think you'll get that here. The only thing about the 307 is it's small. But other than that it can be a nice engine. I'd rather have a 307 than a 305 any day.

If I had a 307 I'd bolt on a set of L30 305 Vortec heads. Need an intake, SA rockers, center bolt valve covers. The payoff is a real good flowing head w/a chamber size smaller than a 350 head. Some info and photos of the L30 5.0d L Vortec head can be seen at Vortec Cylinder Heads: The Definitive Guide, post 478.

Vortec L30 "059" unported casting from the Stan Weiss head flow chart:
.100 68...47
.200 128 103
.300 179 138
.400 205 152
.500 221 163
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