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I'm swapping my 302 for an EFI in the next two months. I'd like a more aggressive sounding cam. The engine will remain mostly stock with MAF. I've got a T-5 with 3.25 rear gears. I'd like it to remain streetable, yet have a lopey idle. Any recommendations?
 

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The B303 or E303 will give you a small lope, I would stay away from the bigger grinds with the stock motor.
You will just loose low end and not have enough head to use the high end. The stock 5.0 cam is a great cam for the stock engine!!!!
 

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I went with E303, very streetable, very nice sounding lope
 

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1966 'A' code GT fastback. Ivy Green Metallic. 327ci. Not terribly stock anymore.
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The B303 hardly lopes at all with EFI... Runs really well, but doesn't lope much.

I LOVE it at 4K+ though. Sweet sounding up there.
 

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I've got a carburated 5.0 with an F303 cam and some other goodies. It's not too lopey since it's a roller cam but it's got plenty of power. It's my daily driver. I get 10-12 mpg with my C4 and 3.55 gears. With your setup I bet you could get close to 20mpg unless you stomp on it all the time.
 
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