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1966 mustang 289 sputtering and poping

5768 Views 8 Replies 4 Participants Last post by  eliseo65
Hi I have a 1966 mustang and it starts and idles fine but when I let the clutch out and try to move it sputters and bogs even when warmed up so I have to give it lots of throttle. I have read manny fourms and threads and can figure this out it seems like a fuel probably. But when I am cruising at 45 and give it throttle it sputters and I have to lightly give it throttle or else it pops and will stutter pretty bad.

I have a stock 289 but it has a edlbrock 289 rpm intake and a old holley 600 carborator. Also a crane cams points to electronic ignition box and a motor craft distibutor but a stock coil.

I will check the cap and rotor today and wires the plugs are new they are autolite 45 I gapped them 2 off of spec by accident could this be the problem? I also am suspecting it is the coil I put on a msd blaster coil and it burned right up can someone please help me. Any advice would be greatly appreciated. Jason
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I don't know why it burned up Maby because it was for high performance system. I didn't think I should use a stock one for the crane cams box what all should I check? Thankyou
The car has aways done this but I did remove the voltage regulator when I changed to a one wire alternator. Also there are no longer points it is a electronic ignition system. I'm going to check the wires on the coil tonight to make sure their on right. No the carborator was not rebuilt but I plan on rebuilding it soon. Also something I noticed was with the engine running on the right side it feels like there's a fire it's so hot then the left is cool, so now I'm thinking intake gasket would this cause a vacuum leak and cause these symptoms? Also would there be major side affects from driving it with a bad intake gasket thankyou for the fast reply and sorry for any errors I'm typing this on my phone from a bus haha thanks again
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