what size carb??

hello there guys,im after some advice,i have a 68 fastback with a 351c in,aussie heads and a mild cam,its got a 4spd manual box and i want to use it for general driving an a spot of drag racing.
It currently has a 600 (vacuum secondry)holley on it and think its too small,i want to fit a 750 but would be interested to here your opinions first[img]/phpBB/images/smiles/icon_confused.gif[/img]

Here's an article with some good carb sizing advice..

http://carcraft.com/techarticles/56919/

IMO, for what you have described I'd consider the Holley 750HP with vac secondaries (Part #0-82750). I had one on my 331 and it ran great.

Good luck with your project. [img]/phpBB/images/smiles/icon_wink.gif[/img]
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A 750 VS sounds good for your combo. Although if youhave some high gears like 3.80 of higher you might want to go with a double pumper.

Well by the time you read this you might have already made your decision. None the less, I would suggest you contact the tech line at Demon Carbs. They helped me in selection a 650 Mighty Demon with mechanical secondaries. It is very important that your give them as much information you can regarding your cam. In the carb game keep in mind that sometimes: "less is more"
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750 vs

thanks guys for your thoughts and info,i went for the 750 with vac secondaries and she runs great.
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