Wave Effect on engine?

well i was working on the mav again first it started right up then it spit spat and backfired and turned off then when i tried to start it up again it wouldnt. it sounds like its on a wave its about to start and then it craps out when i turn it over it does the same thing about to start then craps out like its on a wave cycle.

any ideas?

 

Get it out of the ocean??

 

What kind of carb/ignition are you running.Do you have mech fuel pump or electric???
Could be fuel delivery
carb too lean
If its a holley you may have popped the power valve when it back fired and now it just pours fuel into the engine
could be ingnition timing is not set properly
Heck it may have hung an intake valve open
are you getting a good strong (blue) spark??

 

75 replacement mech fuel pump/holley4160(r6919)/stock duraspark ign
i played around with the fuel level/idle screws/ignition and nothing
i'm going to check out the power valve i have to replaced it anyways i have a 6.5 instead of a 10.5

hope its not a valve...didnt check the spark.

thanks

 

i'm almost ready to throw it into the ocean

 

Make sure the fuel pump is working.Make sure you have good spark.Make sure you are getting proper voltage to the coil and the coil is good.Seems like its flooded out.You may want to pull the plugs and dry em out.Good luck.

 

thanks my uncle was helping me with it and he also said that it was flooding

 

Listen to uncle,wise he is.You cant throw a perfectly good car in the ocean unless its a chevy!!! they will never be good let alone perfect.Good luck.Pete

 

How new is the timing chain?

 

my uncle said he change it when he owned it (about 12yrs ago) but it probally jumped...when i get my tax return i'm putting in a new cam,lifters,balancer.