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Putting a new cam and heads on my motor and wondering where i should set the cam timing. SBC 400 .040 over Probe flat tops with 4cc valve reliefs should be around 11.3 to 1, Track 1 heads (as cast, no port work), victor jr., holley 850, cam is a solid roller comp #12-773-8 xr292 r-10, .582 .588 lift w/ 1.5 rocker (i am running 1.6) 292 297 duration @ .015, 254 260 @ .050, 110 degree lobe sep, 106 intake centerline. And plan on spraying it with a 175-250 shot. Motor is going in 66 nova, 3.90 gear 27.5 tire, thing is my convertor is pretty tight, foot brake stalled only 2300 flashed a bit better. With old heads and cam (292 heads with comp solid flat tappet xs282 .520 .540, 282 290 @ .015, 244 252 @ .050, 110 lobe sep, 106 intake centerline, installed with dot to dot on t-chain did not degree) made 380 hp @ 5750 and 357 tq @ 5500 to the wheels. Wondering if i should advance the cam 2 degrees to help the bottom end or will the added power from the cam and head swap maybe be enough to help and just install it on the recommended 106 centerline? Car ran good on old motor even with no stall 11.19 @ 123.7mph w 1.565 60ft. Thanks for any suggestions
 

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Putting a new cam and heads on my motor and wondering where i should set the cam timing. SBC 400 .040 over Probe flat tops with 4cc valve reliefs should be around 11.3 to 1, Track 1 heads (as cast, no port work), victor jr., holley 850, cam is a solid roller comp #12-773-8 xr292 r-10, .582 .588 lift w/ 1.5 rocker (i am running 1.6) 292 297 duration @ .015, 254 260 @ .050, 110 degree lobe sep, 106 intake centerline. And plan on spraying it with a 175-250 shot. Motor is going in 66 nova, 3.90 gear 27.5 tire, thing is my convertor is pretty tight, foot brake stalled only 2300 flashed a bit better. With old heads and cam (292 heads with comp solid flat tappet xs282 .520 .540, 282 290 @ .015, 244 252 @ .050, 110 lobe sep, 106 intake centerline, installed with dot to dot on t-chain did not degree) made 380 hp @ 5750 and 357 tq @ 5500 to the wheels. Wondering if i should advance the cam 2 degrees to help the bottom end or will the added power from the cam and head swap maybe be enough to help and just install it on the recommended 106 centerline? Car ran good on old motor even with no stall 11.19 @ 123.7mph w 1.565 60ft. Thanks for any suggestions

I like everything in this setup except for the Vic Jr and carb. The carb I could ive with, the intake needs to be a Super Victor. I would do some mild porting and run an HVH SS 1" spacer. The cam is 90%, for the compression you could have gone a bit stouter but should work well. At 11.3 in these engines with the same induction setup, another 5-6* on the intake lobe, and about 2-3 more on exhaust. I also like the 108lsa in at 104. The cam you are using is an off the shelf deal, and like I said, it is close enough and should work well. Minimum I would do is swap the intake out. This engine should make every bit of 550-575hp and will run well into the tens.

As for advanceing it, these camshafts have 4* built in already. I see no need to run it in another 2* as you will start to limit rpm. And like I mentioned before with the already short duration, there will be no need to go more. Cyl pressure should be up there as it is with this short intake duration profile and advance with the compression/induction setup.
 
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