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Old 04-19-2018, 02:24 PM   #4
68Gold/white
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Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,280
Re: Can anything be done with a 307?

Some will argue with me, but you can put a 4 Bbl carb on it for some extra passing power.

I built a 283 years ago and a friend built a 307 at same time. both had 4 Bbls, both performed much better, the 307 obviously a little better because of the cubes.

Cam really needs to be a stock piece, much more and you lose low RPM cylinder pressure, killing street driving.

A quadrajet will work good on a 307, just make sure you get parts and tuning info from Cliff. cliffshighperformance.com

Having done this, the engine did it's job but was NO obvious powerhouse. I build nothing smaller than a 350 anymore, preferably a 400 or larger...400 small blocks are the only way to go...
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