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BIG car
Hello neighbors;
I have inherited a late model Crown Victoria. As I have no money in it, and need a car anyway, I will spend the savings that were for the next car on a dedicated CNG conversion.
Here's where I need advice. The current car is a 16-valve V8 (4.6L modular engine) with a 4 spd AT. Since the engine is about to be dropped and reworked anyway, would there be FE benefits from upgrading the head to a 24-valve or 32-valve system (kid brother works in a junk yard)?
How about changing out the 4-spd auto for a 6 spd auto (same kid brother)? Unfortunately, a manual is out of the question.
I am not attempting hypermiler status, just trying to build a highway cruiser that will make more like 30 mpg than its EPA rated 25 mpg--any extra would be gravy, and I will see what I can do about reducing weight as I go.
I look forward to hearing your suggestions.
Andy-Paul
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Andy-Paul 
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