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Old 05-15-2013, 11:11 PM
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1968 390 cu intake & carb replacment ?

Just bought a 68 Galaxie 500 convertible w stock 390 2 brl (which need rebuild) has 3 spd auto C6 trans ...

thinking about going to a 4 brl and new intake ? (possibly headers)

want to keep it simple inexpensive and Dependable as possible

Car to be used a fun regular driver...not a racer

would welcome advise or recommendations ???

Thanks

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Old 05-16-2013, 12:16 AM
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Originally Posted by Buck Naked View Post
Just bought a 68 Galaxie 500 convertible w stock 390 2 brl (which need rebuild) has 3 spd auto C6 trans ...

thinking about going to a 4 brl and new intake ? (possibly headers)

want to keep it simple inexpensive and Dependable as possible

Car to be used a fun regular driver...not a racer

would welcome advise or recommendations ???

Thanks
Best street intake, Edelbrock Performer RPM. Highly recommend long-tube, tuned headers with an H pipe or X pipe before the mufflers. Don't get taken with a set of those fosdick shorty headers. You may as well retain the stock cast iron exhaust manifolds as to use those turds. Motor has ~75cc heads, making more static compression ratio than the motor can handle with pump gas. The motor will detonate if you do not lower the static compression ratio. Also, we do not have leaded fuel anymore, so you will have to cut the exhaust valve seats for hard seats to deal with the current pump gas. Some will tell you that you can get away with putting a little oil in the fuel to prevent valve recession down into the head and that may work for you.

This motor will need a good set of aluminum heads and a static compression ratio under 10.5:1, along with the proper cam timing to bring the whole mess together.
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Old 05-16-2013, 07:06 AM
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what about Carb ?
Also I am running 90 oct NON Eth fuel (as recommended)...should I be adding ant thing to it ??
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