New Comp Cam need timing help!

tevans720 · 07-01-2009, 11:12 AM

We had just bought the Comp Cam 35-308-8 for the 5.0 ho. The motor was all rebuilt and we can't figure out the timing. I'm not a timing guru I really don't know much about it but the basics. Now I be leave a stock 302 would be set at 10* to 12* BTDC. With this cam in and timing marks lined up with each other it wouldn't start till we got it to 20* BTDC and ran like shit we advanced it little by little till it sounded and ran great at 27*BTDC But 27*BTDC seems like something is wrong. Why are we needing to go that far?

Another thing we did is and I don't think this was the right thing to do but we did we left the cam at 27* BTDC and moved the motor back to 10* BTDC. Then we lost a lot of power it seems like it was way faster before hand.

Basically what I'm asking is if anyone has used this cam and how they set theirs up? I would prefer answers with personal experience not with well my friend or it should work doing it this way. Because I have had enough of that from others.

Something just doesn't seem right what am I missing or doing wrong?

Thank for the help ahead of time
Tyler

07-01-2009, 11:12 AM	#1
tevans720 Registered Member Join Date: Jun 2009 Posts: 1	New Comp Cam need timing help! We had just bought the Comp Cam 35-308-8 for the 5.0 ho. The motor was all rebuilt and we can't figure out the timing. I'm not a timing guru I really don't know much about it but the basics. Now I be leave a stock 302 would be set at 10* to 12* BTDC. With this cam in and timing marks lined up with each other it wouldn't start till we got it to 20* BTDC and ran like shit we advanced it little by little till it sounded and ran great at 27BTDC But 27BTDC seems like something is wrong. Why are we needing to go that far? Another thing we did is and I don't think this was the right thing to do but we did we left the cam at 27* BTDC and moved the motor back to 10* BTDC. Then we lost a lot of power it seems like it was way faster before hand. Basically what I'm asking is if anyone has used this cam and how they set theirs up? I would prefer answers with personal experience not with well my friend or it should work doing it this way. Because I have had enough of that from others. Something just doesn't seem right what am I missing or doing wrong? Thank for the help ahead of time Tyler

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