New Parts, New PROBLEMS!!!

[piecesparts]

OOOOHHH ZAP-----POW---HEAD BANG----OOOOWWWW----CRAP---- DARN IT


Dang plug wires.

another way is to start it and listen, then turn it off and pull a plug wire, then start it again---if it is worse, then shut it off an pull another. OR put all of the plug wires on just down to the clip for the plug tip and use a plastic puller to lift them off one at a time. I use an old fuse puller form my electrical days---no shock.

[bitchin85]

pulled out the plugs and looked at them. thtey all looked clean. no build up no oil none were wet... al gapped at .045. im going to haveto try that with my plug wires. theyre msd wires that i made.. so i could have screwed an end up... anyone know what that while stuff is?

[54Caddy]

white stuff can be fuel from backfires through the carb

[bitchin85]

that explains why the air filter element is melted.. is this caused by the miss? and the fumes and gas cloud coming out the exhaust?

[54Caddy]

can be man trying to rev it while it misses will usually spit fuel up through the carb or even a flame. and yes its unburned fuel

[HOGDADDY]

It looks to me like the wrong timing tab also. Looks like a 305 tab and they are 12 degrees different from a 350 if I am not mistaken.

I would double check to make sure plugwires are plug into correct places.

Did you use a steel shim intake gasket? Aluminum manifolds require the felpro gasket (or others makes) without the steel shim because the low torque (25# or so) of the bolts (on aluminum intakes) is not sufficient to compress the gasket properly.

[bitchin85]

they were a fel pro brand gasket but they were just stock replacement... and i put the new timing tab on and it seemed to kind of help.. now the hole distributor is new pretty much.. brand new plugs and wires i know the firing order is right.. this is killing me..

[54Caddy]

so you still have the missing problem??

[bitchin85]

Unfortunately yea.. It's a little better but itsstill there.. And its a lot harder to start then ever before.. I'm working on a deal with a holley 600 rebuilt and I ordered a mech advance kit maybethatll help

[54Caddy]

oh **** harder to start then before isnt good at all. This is usually timing. Okay your engine is a 350 correct? Does it have a cam in it or just stock?

[MylilBowTie]

Why is everyone saying its the timing tab? Looks like a wide 305 balancer with the stock 12oclock timing tab. Now its harder to start with the new timing tab.

[HOGDADDY]

Originally Posted by *****in85

they were a fel pro brand gasket but they were just stock replacement... and i put the new timing tab on and it seemed to kind of help.. now the hole distributor is new pretty much.. brand new plugs and wires i know the firing order is right.. this is killing me..

Stock replacement is probably the steel core http://www.summitracing.com/parts.aspx?sku=FPP-1204

but the fel-pro printoseal http://www.summitracing.com/parts.aspx?sku=FPP-1256
is whats needed for the aluminum intake.

I don't know that this will solve your problem but if intake is not sealing properly could have vacuum leaks and more.

[bitchin85]

dont know if i did it right because i sealed the gasket with a film of blue silicone all over.. but sometime soon im puting in a summit 262 cam. anyone know anything about these? i got it new for 20 bux. anyways illl get the better gaskets when i put it back together after the cam

[datguysaL]

try firing her up at night, pop the hood, and turn off all the lights around you, and watch for arching at the wires. visually trace each wire and you could try moving them around with a wooden stick or rubber handled long tool.

also check to see that your carburator is for that intake that you have, i know that square bore carbs and the spread bore carbs act different and you need adapters when puttin a square bore in a spread bore and vice-versa.

[bitchin85]

i have checked for arcing. it has brand new msd wires on it so it dont arc anywhere.. aand the carb is a 1406 and the intake in a performer eps
this is what it looks like

[bitchin85]

And yea I have tried to time it with both timing tabs and they both run like s**t.. Is my harmonic ballancer shot? Because at a high rpm I do feel a vibration.

[HOGDADDY]

OK you just need to narrow it down. If you only replaced the manifold and it ran good before then it has to be the distributor/timing and if it is off that could cause it to overheat also.

Are you sure you have a 350 motor? Look up the numbers on engine pad on mortec's website.
http://mortec.com/

The balancer looks like a 305 balancer along with the tab.

Take out #1 plug and turn engine over til you feel compression, then turn crank manually until the timing mark reads TDC then see if distributor lines up on #1 terminal on dist. cap, if not restab the dist.

[bitchin85]

The block is for sure a 350 I ranthe numbers but the heads and everything else is off the stock 305

[HOGDADDY]

If it were mine I would swap the 305 balancer for a 350 balancer I used one of these on mine http://www.summitracing.com/parts.aspx?sku=PIO-872002

Here is an 8" also http://www.summitracing.com/parts.aspx?sku=PIO-DA-3502

So just changing the tabs w/o changing 305 balancer will still give you wrong readings because that balancer marks are 12 degrees off from a 350 balancer (I measure the difference when I replaced my 305 with a crate 350)

[datguysaL]

Ok, so u said it missfires under load, is it undee throtle at all times or just at certain rpm? Can u post up a picture of your install? That way we can see wat it looks like and maybe catch the problem. Could probly just be a crossed vaccum or something simple. Did u use any spacers? Was there any parts that u didnt use on your new intake that were on your old intake? have u pulled the plugs yet to check wich one is causing the problem? Double check your dist cap, pull it off and look into it, also, when did u get the new wires? After the install? B4? Or during?

[bitchin85]

well right now i have everything together to put a 262/272 summit cam in it. i bough the those fel-pro 1205 gaskets you were talking about. im going to match them to the heads, i noticed that they dont have the center hole in them like stock replacements do.. emissions i think?? what affect will that have on the motor by blocking those off? so hopefully when i yank everything apart and back together again i realize what i did wrong the first time around, and fix it. does anyone have any experiance with this cam. its pretty mild right? will ihave a lumpy idle at all? what kind of hp / mpg gains will i notice?

[bitchin85]

datguysaL, i got the wires about a week before the install. before, i had a single plane with a 2 inch 4 hole spacer on it that will probably be going back on soon. i dont think i have a vacuum line crossed. all i have is my vac advance and my trans, and heater controls. then brake boost on the carb and pcv.. i put a new cap and rotor and coil on it and it helped nothing. i pulled all the plugs and they all looked the same.. real clean and dry.. i think i have a vacuum leak on my intake gasket cuz i used a steel core gasket.. i hope.. i guess ill find out when the cam goes in

[datguysaL]

Hmmm well guess we'll just have to wait and see, cuz now i want to know what went wrong.

[bitchin85]

me too.. its driving me CRAZY. i feel dumb lol a simple intake swap and its been running shi**y for a week now..

[HOGDADDY]

Originally Posted by *****in85

well right now i have everything together to put a 262/272 summit cam in it. i bough the those fel-pro 1205 gaskets you were talking about. im going to match them to the heads, i noticed that they dont have the center hole in them like stock replacements do.. emissions i think?? what affect will that have on the motor by blocking those off? so hopefully when i yank everything apart and back together again i realize what i did wrong the first time around, and fix it. does anyone have any experiance with this cam. its pretty mild right? will ihave a lumpy idle at all? what kind of hp / mpg gains will i notice?

Well I don't know if the valve springs will be good enough but best match springs with cam and hopefully you have new lifters already for that cam.

If you don't make a hole for heat crossover it will make one all on its own eventually shouldn't hurt anything at all though.

I would get it running right before I put a new cam in jmho.