OK i have been restoring my car for about 5 mouths and finally got to the point i which i can start my retired drag motor its a 350 bored 30 over 69 corvette heads and an agressive cam i wish i could tell what its compression was but my friend that gave it to me died before he could tell me it now has a stock fuel pump and a q jet carb its not staved i dont think. but when i go to start the car i get compression back through the carb when i added gas to try and help the start all i got was a ball of fire nothing was messed up from it i just burned for some time then smoked its self out. So what would cause the back presher through the carb any ideas? O ya i tryed to time it before by reading the manual because i had no idea what i was doing my frist thought was mabey i have compression and exaust back words but what is ur opinions?

check to be sure you have the plug wires in the right order. it is easy to mix em up. it will spit through the carb if ya do.

ok thinks i will try that i thought i did it right but o well it cant hurt beside i thing i have the wrong wire going to the places to short o rnot enouf slake in the wires smile.gif

If your wires and timing check-out okay, then I would suggest that you advance the timing. Advance it to the point where it starts to kick-back and then back it off a couple of degrees. You may be surprised to find that you have 12-18 degrees initial timing. The combination of components in your engine may dictate that you have a radical ignition curve. This was exactly the same case when I first fired the SB in my Chevelle.

short o rnot enouf slake in the wires ?????

What kind of language is this???

Anyway make sure the distibutor is not 180 degree's out.
Has the engine sat for a while?
Could be a stuck valve. Any time you have something coming out of the carb means the intake valve is opening (or stuck open) during the power or exhaust stroke....Could just be the timing is off.
Did you try turning the distibutor and cranking again?

You said this is your retired drag motor.

Did you ever race and work on cars before??????

yes i have worked on cars just not this into it. i grew up around them my dad was going to help me restore it but he was in a bike crash before we could start and died so i have deticated this build to him.
And for the "short o rnot enouf slake in the wires" i miss spelled sorry dont have spell check it means short or not enough slack in the wires. smile.gif Also the motor has sat for some time i dont think the valves are stuck because the rockers are moving. I think that it was 180 off because after rereading the manual i found that after doing it over no more flame came out of carb. but know my start works then stops then when i tried over it worked then made a spark then stoped and then it did not wont to turn over again. The car its a mild proformance started but i think the compression is to high for it to start it also i got smoke coming from the neg on the battery its only grounded to the motor so im also going to ground it to the car.I have a freind of mine that a wise at sb motors so he said he would fix it. He has a 71 el camino with 454 in it he is about 30-40 so he should fix it i hope

Originally posted by srubydo:
yes i have worked on cars just not this into it. i grew up around them my dad was going to help me restore it but he was in a bike crash before we could start and died so i have deticated this build to him.
And for the "short o rnot enouf slake in the wires" i miss spelled sorry dont have spell check it means short or not enough slack in the wires. smile.gif Also the motor has sat for some time i dont think the valves are stuck because the rockers are moving. I think that it was 180 off because after rereading the manual i found that after doing it over no more flame came out of carb. but know my start works then stops then when i tried over it worked then made a spark then stoped and then it did not wont to turn over again. The car its a mild proformance started but i think the compression is to high for it to start it also i got smoke coming from the neg on the battery its only grounded to the motor so im also going to ground it to the car.I have a freind of mine that a wise at sb motors so he said he would fix it. He has a 71 el camino with 454 in it he is about 30-40 so he should fix it i hope First off I was just kidding about the spelling, I kind of pieced it together. This is a great thing your doing in the name of your Dad.

I'm not following you too closely on this post though , you re-stabbed the distributor and get fire to where it almost whats to start?

The rockers move so a valve is not stuck? How do they move?

The starter stopped turning over probably because a loose or dirty or corroded connection that's why the cable smoked. To the block is fine for a connection (that's what the starter is bolted too, not the frame) Just clean all connections first and tighten them, you should be good to go.

Now it's time to re-start this puppy. Try turning it over and see what happens. If it spark like it wants to start, shut it off and turn the distibutor a touch and retry it. You may have to go in the oppisite direction if it doesn't start.

Good luck and re-post after you try it....

i havent worked on it yet because off my little bros car braking down on me it turns out that the starter was loss on his 90 mustang :mad: i dont quite like fords but the starter dethreaded the trans so i have to get it done before monday so it seem im boked for some time now and more if the started is messedup and the flywheel. o wooweys me

and for the rockers them move like a seesaw up down up down you see ;)

and the wiring thats all new but i think i tracked the problem down one of the wires that plug into the alternator got cut some time back and i fixed it but it was not covered so it was touching my alum. valve covers also the pos. wire that goes to the starter is just resting on the the prong it bolts to because it didnt come with a nut to titen it down. plus i was cranking the car over for some time