parts lady gave me the wrong plugs

[Mikes64]

i went to a parst store that i am not familiar with looking for plugs for my mid seventies sbc 350. I am almost certain she gave me the wrong ones and now my old ones are gone. the truck runns rough when it gets to the higher rpms, it was smooth with the old ones. does anyone know what the correct plugs are and what the gap is. Please help.
Mike

 

[dvalentine]

RE: parts lady gave me the wrong pl

I can help with the gap.

30 thousanths for a points distributor
40 thousandths for an HEI distributor

DVal

 

[Sparkplugc]

RE: parts lady gave me the wrong pl

>i went to a parst store that i am not familiar with looking
>for plugs for my mid seventies sbc 350. I am almost certain
>she gave me the wrong ones and now my old ones are gone.
>the truck runns rough when it gets to the higher rpms, it
>was smooth with the old ones. does anyone know what the
>correct plugs are and what the gap is. Please help.
>Mike
:'( I would go a AC R45ts and use a 035 gap Sparkpluc

 

[Mikes64]

RE: parts lady gave me the wrong pl

thanks guys,

 

[Mikes64]

RE: parts lady gave me the wrong pl

it turns out I she gave me r45ts plugs. I re gapped them but am still having the same power loss and skipping in 3rd and 4th gear. any body got any other ideas

 

[swenson89]

RE: parts lady gave me the wrong pl

if it is a points distributor, mabye try to replace the points and condenser, my 235 inline was doing this last week and i did that and replaced the plugs. and that has been working so far.
wish you luck

 

[Mikes64]

RE: parts lady gave me the wrong pl

its an hei distr. I have know idea whats going on.