Spark plugs and carb?
Im almost finish putting together my 427bb and i have two questions.the first one,wat kind of spark plugs should i use?any part numbers.the engine is a 427 bored 30 over, 049 oval ports with 2.190/1.88 valves.trw dome top pistons @10 to 10.5 compresion,comp cams 292 magnum cam.the second one, im thinkin of goin with a proform 850 carb.summit part#67201 do yal think this is a good carb to go with?is it good size, too small or too big?
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Re: Spark plugs and carb?
damn bro nice set up. Did you build it.
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Re: Spark plugs and carb?
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Re: Spark plugs and carb?
I would go with a holley street hp 950 it should work very good. I think the ngk race plugs work very good for $2.99 each. I have seen nothing but bad luck with the pro form carbs last one i seen had the boosters in crooked. Just my opinion stay away from the pro form carb. Good plug to start with if you use the ngk is 5673-7
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Re: Spark plugs and carb?
I use NGKs on a 10:1 compression ratio ZZ4. They work great!!
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Re: Spark plugs and carb?
Yeah Craig has done some heads for me on my 08 silvy. if i dont buy a crate engine i will probably get him to rebuild my current one.
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Re: Spark plugs and carb?
Thanks a lot guys for the responses.anybody else have any opinions on the proform carbs?anybody running delco rapidfires?
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Re: Spark plugs and carb?
I've heard a lot of bad things about the Pro Form carbs. Stick with a name brand, you get what you pay for.
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Re: Spark plugs and carb?
buy a holley hp750. I don't like the quick fuels either. I might be able to get you a deal on one if you decide to go that way.
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Re: Spark plugs and carb?
I've read a few threads lately about pro-form and it sounds like their quality control is in the pooper. What about getting a custom carb?...like Braswell or ProSystems. I hear they can tune the fuel curve for your combo. That's what I wanted to go with, but for now I chose to keep messing with my current 750DP so I could learn a little bit on my own.
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Re: Spark plugs and carb?
Well after hearing all this stuff about proform i think im going with a holley 4150 hp carb.still unecided on the plugs though.
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