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Re: 307 engine
Quote:
Originally Posted by Wikid61
You can put a set of cheap as cheap 305 heads like I did. +.60 = 317. Really the latest Vortech will bump power even more. Like 30-40 horse. And a bit of torque. But that stock 307 cam is the power killer of all. Old timers told me of guys buying them from running cars for $100 all day (owners were going 350, like always eh?) drop in a dirt cheap factory 327 cam (1973 prices) timing chain. Add headers & a dual plane. Done.
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When I swapped out to a 350 crate engine I installed Hooker headers and a Holley four barrel carb. It wasn't until I swapped out the cam in *that* engine that I realized what a change a cam can do. My Hooker headers changed a deeper shade of blue during the cam break-in procedure. I still remember that and it was thirty-five years ago in my geezer memory bank.
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1989 K1500 Chev. EC
Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit.
2009 Hummer H3T 3.7L 5M (sold)
1997 K2500 Chev. EC 7.4L/ 4L80E
2018 Dodge Ram 2500 HD R/C
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