Johnny wont run steady at WOT

[JCSuperman]

Got a 1968-69 Johnny, last year overheated... got all fixed.. this year when starting it has a drop in rpm's at wot by prolly about 200rmps... when acts like someone is turning on and off a light switch.. this is how fast the rpm's vary, stays at either rpm for 'bout 4 secs. but idles very nice, when it decides to start... <br /><br />Could the gas line have an air leak? Or fuel filter??<br /><br />Thanks for helping.

 

[JB]

Re: Johnny wont run steady at WOT

Howdy JC.<br /><br />Could be an ignition problem or a fuel system problem.<br /><br />Post us the model number and we can be a lot more help.