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Old Oct 12, 2018 | 06:32 AM
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After reading the other work that would be required to switch from the A to the 2, I'll probably just stay with the A for now. I didn't realize the 2 needs new collars.
 
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Old Oct 12, 2018 | 07:12 AM
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Yes a little work is necessary to accommodate the lift.
 
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Old Oct 12, 2018 | 08:39 AM
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Originally Posted by pjb
After reading the other work that would be required to switch from the A to the 2, I'll probably just stay with the A for now. I didn't realize the 2 needs new collars.
You believe that yer 1976 Shovel heads are still Stock???
Our shop never did a set of heads that were Not clearanced to at least .450 lift... unless they were pristine... then we left em as close as possible..
Not hard to investigate..
 
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Old Oct 12, 2018 | 08:56 AM
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The #2 cam lifts to .490" not sure what Scott did to the guides or spring but I do know an adjustment was made. I took it out cause it was a little too much for 9.0:1 comp, driving my oil temp to 245-250*. I wasn't comfortable with that..
 
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Old Oct 15, 2018 | 07:42 AM
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Originally Posted by 98hotrodfatboy
The #2 cam lifts to .490" not sure what Scott did to the guides or spring but I do know an adjustment was made. I took it out cause it was a little too much for 9.0:1 comp, driving my oil temp to 245-250*. I wasn't comfortable with that..
You think the cam affected your oil temp???
Never heard that one... but, never worried much about oil temp either... only run oil coolers on O.E. that are being kept Original...
 
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Old Oct 15, 2018 | 08:01 AM
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Absolutely, after putting the A2 cam back in my oil temps drop to 225* Max hot on a long trip. Also reduced detonation on a hot day starting off in 1st gear. Earlier intake close...
 
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Old Oct 16, 2018 | 11:55 AM
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Originally Posted by 98hotrodfatboy
Absolutely, after putting the A2 cam back in my oil temps drop to 225* Max hot on a long trip. Also reduced detonation on a hot day starting off in 1st gear. Earlier intake close...
Earlier intake close would increase dynamic compression ratio increasing combustion temps and engine temp.
 
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Old Oct 16, 2018 | 01:11 PM
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A2 Intake: 19/43 242 0.450 Exhaust: 50/18 242 0.450 Overlap: 40

2 Intake: 15/35 230 0.490 Exhaust: 35/15 230 0.490 Overlap: 30 (L.C.)

the 2 has a earlier closing intake 35 the 2 like hell said will increase temps
 
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Old Oct 16, 2018 | 03:15 PM
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Originally Posted by biginchhustler
like hell said will increase temps

All things equal, an earlier intake closing will increase the volume of the trapped charge resulting in more of a bang (for the layperson). Its basic engine math.
 
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Old Oct 16, 2018 | 05:31 PM
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personally I like the leinweber L3S - its got gobs of torque and super bottom end scat

L3S Intake: 35/59 274 0.485 Exhaust: 63/31 274 0.485 Overlap: 66

remember leinwebers open/close numbers are .020 not .053
 
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