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Old 12-20-2008, 12:48 AM
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Cam Selection

Hey guys i know this uestion gets asked a lot but i was wondering i suck at the numbers for cams and i was just wondering what the best cam would be for me right now i have a stock converter and 3.73 posi outback with a t350 tranny 350 with 305 heads holley contender manifold soon to be edelbrock performer rpm air gap flowtech headers and a holley 600 i just want a good cam that will give me a nice boost in power and have a lil bit of a beefy idle any idea what torque converter i could use too? input would be great thanks so much everyone.

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Old 12-20-2008, 04:29 AM
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I guess that depends on what you want it to do. Comp cams 268 cam is a good perfomance street cam with a choppy idle. It can be used with a stock converter.It is about as big as you want with a stock convertor. I had a stock smog 350 that worked well with a 262xe comp cam.(edel 600 carb and intake with 2.72 gears,350 turbo in a 4000lbs car. it got 20-22mpg) It is noticable but not lumpy. Those 305 heads won't breathe on the top end so a high rev cam is pointless.
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Old 12-20-2008, 05:59 AM
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Yes I think that Comp cams XE262H Would be hard to beat with your set up as is . Here is the Spec card http://www.compcams.com/Cam_Specs/Ca...x?csid=85&sb=2
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Old 12-20-2008, 07:11 AM
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Those two suggestions are not bad at all, I also like the Elgin 274/274 cam0 its the same as the 274H06. i think its tighter LSA would be good for those weak heads, but are valid cams
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Old 12-20-2008, 01:39 PM
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thanks for all the input any idea how i would go about putting the bigger valves in? thats what i intended to do i just dont know where to start ie( valve seats and whatnot)
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Old 12-20-2008, 01:43 PM
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i was looking on summit racing and it sead for a 305 engine or a 350 would it make a difference? my 305 heads are not as tall as the 350's
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Old 12-20-2008, 01:53 PM
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For your small bore 305 Street Build the Stock 1.84" in/1.50"ex Valves will be Fine . Just have the valves checked and do some gasket port matching . Have a Clean up cut to the deck . Install new Valve seals and Springs . You will be Fine and make good Power with that 305 . Now a 350 would be a more Powerful build . The 305-350 Heads are the same height .
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Old 12-20-2008, 01:56 PM
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well the block is a 3 fiddy i just ported out the heads a while back just gotta get new seals and springs as you said
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Old 12-20-2008, 01:57 PM
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im just a lil confused as to porting the bowls all i did was the intake and exhaust ports
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Old 12-20-2008, 02:08 PM
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Here are some good Links that will help you . Porting is an art http://www.activeboard.com/forum.spa...picID=23006114
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Old 12-20-2008, 03:59 PM
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dont remember for sure they are hipo 305 heads from the 84 monte i believe this is the casting 14014416
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Old 12-20-2008, 07:57 PM
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That is some really nice port work
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Old 12-21-2008, 12:22 AM
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IMO the comp 262 is plenty you shouldnt even need to really upgrade the stall it is mild enough to run with stock components bro but the GRUNT down below you will feel in the seat of your pants
Or you could just throw in an olds engine PROBLEM SOLVED
i know i know im just kiddin ya
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Old 12-21-2008, 03:13 AM
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Here is another Link From one of the masters of the Art http://www.mondellotwister.com/ArtHeadPort.htm
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Old 12-21-2008, 07:03 AM
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comp high energy 268

i had a high energy comp 268 in my boat 76 monte with heads performer intake and a 750 vac sec 4010 holley and 4:10 gears with an auburn posi. I smoked the tires from more stops signs then I can remeber. Started good and had a nice healthy idle. Man I miss that car
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