I purchased a 1971 Mustang Fastback about a month ago, which runs pretty good and has pretty good tires.

I was told the engine wasn't original and was a 351, but upon further research, it’s a 429, a 69 with C9VE-A heads.

Here are a few pictures.

http://pg.photos.yahoo.com/ph/bigen1...Ol_KFBnC77RJLT

I've got a little bit of work done on.

I’ve changed the distributor cap, rotor, spark plugs, plug wires, thermostat, flushed the radiator, and changed all of the fluids.

Doesn’t sound like much but when you consider we have a 3 month old baby boy in the house, it was hard to get that little bit of work done!

I’m planning on getting a new coil this week and that should about do it in the engine compartment, for now.

However this weekend I took my 15 year old son out for a drive. The car still starts beautifully, idles nice and sounds really good.

While we were out driving it, when I really hit the gas petal hard, the car hesitated, spitted and sputtered. I would let off the gas and it went back to running fine. I tried slowly depressing the gas petal and it would rev up and do fine. But every time I hit the gas petal hard it would spit and sputter. I tried spraying out the carburetor with carburetor cleaner, but it didn’t seem to help.

I’m guessing either the carburetor needs to be rebuilt or some how the timing is off?