Hi guys, new to the forum here. I've been searing around and have not found a solid answer to my issues. I got a 351w(1984 block .03 over) in a Foxbody like the title states. I have a 268h comp cam installed along with the rebuilt springs on a stock heads (e7 heads) it's running through a msd 6al with a blaster 2 coil, Autolite 23's and a stock style rebuilt duraspark dist and street demon carb.I also have a performer rpm intake on it. right now my timing is 6 degrees initial with 30 centrifugal obviously making that 36 total the issue I'm having is that i can't set my vacuum advance (turning the screw in the vacuum) without the engine pinging at around 2500-3000.
The cam kit i bought came with a timing set. Being a single roller, I opted it out for a double rollar that could possible problem number 1 if that timing set was made specifically for my cam ( i still have it) but don't see the issue unless the gears differ. possible problem number 2 is that i installed the cam straight up that already has a 4 degree advance ground into it so maybe i'm more around 40 degrees timing instead of 36. My rad is stock. Problem number 3 is that i have no EGR hooked up because of the svo shorty headers and the performer rpm intake. I have a 195 thermostat installed i'm going to try a 180 see if it's a heat problem. But i can time it to 36 all in and not hear a ping but then that's 0 initial 36 centrifugal and if i bring down my centrifugal and run 8 degrees initlial and 28 centrifugal it still pings. but like i said under light load 2500-3000 in that range. i'm pretty sure i'm at the end of my vacuum advance cause i keep turning it counter-clockwise and it stays the same. problem number 4 is probably the issue is running the stock heads and not having any egr hooked up. Any input would be greatly appreciated.
Thanks Mike
The cam kit i bought came with a timing set. Being a single roller, I opted it out for a double rollar that could possible problem number 1 if that timing set was made specifically for my cam ( i still have it) but don't see the issue unless the gears differ. possible problem number 2 is that i installed the cam straight up that already has a 4 degree advance ground into it so maybe i'm more around 40 degrees timing instead of 36. My rad is stock. Problem number 3 is that i have no EGR hooked up because of the svo shorty headers and the performer rpm intake. I have a 195 thermostat installed i'm going to try a 180 see if it's a heat problem. But i can time it to 36 all in and not hear a ping but then that's 0 initial 36 centrifugal and if i bring down my centrifugal and run 8 degrees initlial and 28 centrifugal it still pings. but like i said under light load 2500-3000 in that range. i'm pretty sure i'm at the end of my vacuum advance cause i keep turning it counter-clockwise and it stays the same. problem number 4 is probably the issue is running the stock heads and not having any egr hooked up. Any input would be greatly appreciated.
Thanks Mike
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