[quote]ORIGINAL: andykbob

Hey, I seem to have a problem starting my 351 when its warm. It turns over fine when it's cold, but when it's hot, it barely turns over and sometime it just won't turn it over. I had the battery checked and was told it was fine. The batterey, voltage regulator and alternator are new. I was told that my timing could be too advanced so I backed it off. It seemed to work for a day but then it did it again.

Any thoughts?
[/quote

Start all over guys. andykbob said the engine will not turn over when hot. Not fuel, not coil - starter.
Jim]

 

go to autozone with the engine hot and have them test the starter on the car that will answer the question of the hot starter, which I would bet is the problem.

 

i had the same problem with my 351w it turned out to be the ground wire from the block was too small. i added another ground wire (4ga)from the ear of the starter straight to the neg terminal on the battery. no more problem.

 

What carb and intake are you using? If it is an edelbrock/carter carb on a no air gap intake, it is usually vapor lock. This can be fixed with a heat insulator gasket. A one inch is usually not necessary, and will effect where you engine liks to run(usually at higher rpm since the velocity is higher entering the runners).

 

heres a question thats never been asked whats the compression of the engine high compression and hot will do that with a normal starter

 

ok, im having trouble figuring out how vapor lock will cause the engine to not turn over at all.

 

Thought about that last night, also! True...

 

OK Lets see.

The Alternator and Battery are nre

No there is no Spacer under the carb

The Carb is a Holly 750

No Idea about the compression thing

The New coil is the actuall measuring 2.5 volts now. I think I should test is with a different meter.

I think thats it

 

how can you prove weather it is vapor lock?

 

Anyone know where I can get a good high heat starter?