Vacuume advance help!!!

Not sure if its the problem or not but at high rpm's my 1950 ford with a 239 flathead starts to hesitate. Is it the vacuume advance or something else?

 

timing

 

Could be since that is the only advance..One from a 65' Comet 6cyl is the same..

 

contact gmc bubba here on eh hamb, shitcan stock dizzy like now..

there is so much difference when using one of his dizzy's that word cannot describe it.

absolutely the best money you will ever spend on a flathead.

 

Yep I just put one of Bubbas converted SBC distibutors on a buddys flat head for him, he said it hasnt ran that good in the 20 years he has owned it and I have them on both of my flatties too

 

what does everyone do for a hold down on bubbas?

 

I just cut the head off of a bolt, thread it into the block like a stud and use a nut/washer to tighten it down

 

thanks will do