miss. in eng

[1299]

hear the story. 1st run of the day it will mjss at the top of each gear. then be good all day. changed plugs wires cap and rotor and still the same.
has anyone seen this before?
motor-468ci, 13:1, tran-400 car-3500lb

[67camaroracer]

I had an issue once I added an exhaust system to my camaro only to find out I had the wrong plug for the merlin head. I know it's a long shot but also check the pill in the rev limiter.

[1299]

try pulling the chip and did not change. what weard is it was fine be for the winter now on the first run for the day it miss. than no more problem for the rest of the day

[junior barns]

to much fuel bleeding into the engine while sitting for extended time?? Takes a good hard pass to clean it out/???

no clue just a thought

[Floyd Gomez]

I always shut off the fuel pump and clear the carb after each race. This makes sure I have no fuel left in the carb as I was having the same problem in my bracket car. Seemed to fix the problem

[junior barns]

If car is sitting in a way that the carb is below the tank or cell with no shut on fuel line; the gas will bleed into the engine. ???

[Jim Whitehead]

Do you leave the water in it or drain it out? If you leave water in radiator and motor you may have a head gasket weeping, after 1st run cylinder clear.

[Darrin Christen]

What's the battery voltage before the first pass?

[1299]

battery volt is over 13v and i do have water in it all the time but have not had to add any. i will try the fuel shut off next weekend and see how it work if have problem will dump water and see how that works.

[John Quinn]

I once had a cracked coil that acted like that, when it cooled off at night it apparently took in moisture in the crack and when it warmed up it purged the moisture and ran fine.

The crack was so fine it was almost invisible. Changed the coil and the problem was solved.