Just installed a comp cam extreme energy 262, what do I set my timing at 6 deg btdc factory spec or adjust. Also after breaking in the cam do I need to adjust valves again. Thanks

 

Unless specified otherwise I would say use the facotory timing as a start and go from there, fine tuning. If your rockers are non adjustable I would say no if they are adjustable I would think no but probably wouldn't hurt if you did? What was the part number on that cam and what did you put it in/mods? I would like to know how you like the cam as I am planning on getting a XE cam as well

 

adjust your valves before, after, and 500 miles after you break the cam in. I'd set the timing at 10 deg. BTDC, but it will start up quickly at 6 as well. Although crazy, you might be able to adjust the timing while you're breaking the cam in, just be extremely careful you don't drop a wrench while you're doing it! Start at 10, then after a few minutes, move the distributor around until it sounds best. Make sure that you install the cam "strait up", if you try to advance it you'll end up 4 degrees more ahead than you wanted, because all the XE cams are ground with advance already in them.

 

I installed the XE262H it has 493 intake 500 exhaust lift. 218 intake 224 exhaust @.50 duration. Truck runs great and sounds awsome. I Cant believe the differance in sound nice rumble. Bought the cam kit that had cam, lifters, timing chain, valve springs. Also added roller rockers . Summit has free pushrods with comp cam roller rockers.

 

dido on the timming, 10 degr BTDC if you get no valve rattle or ping then try for 12, Good luck DW
P.S. sound dont make it run, but how does it run?

 

Runs great. But I did have a rocker nut come loose. I used comp cams adjusting kit came with spacers and lock nuts or I thought they were took out for a drive and heard a ticking pulled valve cover found a nut had started to loosen up. I guess I'll go get new lock nuts and replace all of them. Can I use the nuts that have the plastic locks or would they not hold up in the heat?

 

are your rockers adjustable now? if so i would use poly locks you can order them from summit or jegs, but i would not use NY-LOCKS, if your gona use regular lock nut then use the all steel ones. DW

 

Yeah I am looking to add the cam just before yours the XE256H. Well I know you got a 351 what mods have you done to the engine other than the cam? So the cam really woke your truck up?

 

Bottom of motor stock, Added performer intake, Holley Street Avanger carb, headers, replaced points with Pertronix.

 

should run prety sweet. DW

 

51truck
Stock, well we have a similar combo, did it really change how the motor performed/ make it run like a stock motor should? Would you highly recommend it as Torqueking does so much? BTW, nice truck

 

don't you have to degree the cam instead off putting the timing gears to factory setting? i mad a 302 with a mellings mtf1 cam and i did not adjust the timing chain to compensate for the cam changing the timing. it gives you more hp to have the cams degreed. that is why jegs sells degree wheels. i cannot find my cam card to know all of the specs of my cam. do you think i can call oreily's where i got it and give them the part number and then they could tell me the specs or at least the number to the place they ordered it from. i know the cam has 286 duration and 474 exhaust lift that is all. help i need that extra hp so i can beat the monte carlo ss down the street.lol

 

degreeing the cam does not change your horse power, your make what you make, what degreeing drag racing example, if you have a car thats realy strong out of the hole but nose dives on the topend, then you can retard the cam so the power band comes in later and builds more in the upper rpm range. if your power band on your cam is 2400- 6200 rpm then installing it 4 degrs adv may drop your power band 2000-5800 ball park, 2 dgres adv. is generaly nice for a street motor cuz it gives you a good crisp throtle responce provide your cam isnt to big to start with. hope this helps DW

 

do you think my cam is right for street if it is degreed right. right now it won't burn out, but the old motor did so it is not my rearend, but it tkes off fairly fast and if you are going like 50 and you stomp it ,it puts you back in the seat and leaves people behind when it is in 2nd gear .c6 having some trouble shifting to 3rd. but even in 3rd when i stomp it without the kickdown lever it still has power. i talk to somebody today he thinks it could be something like an rv cam 286 duration 474 exhaust lift what do you think obout my cam and it's symptoms is it not a good street cam

 

it would help to know the duration at .050 it kinda sound like your cam is a little big for the gear your running, a good indication of this is slugish take off then coming on strong. What size tires do ypu have and what rear end gear are you running? DW