650 DP SBC dirt track question

Discussion in 'Holley' started by DEADMANSCURVE, Jul 15, 2013.

  1. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    ok time to wake up holley guys .
    basic info : SBC mod dirt track car . worked over holley 650 DP carb ( like a $1200 carb ? ) . runnin E85 . supposed to be like 600HP according to him . also has a crate motor he's thinking of using from car #2 .
    asking me for #78 jets front and rear . is that enough jet ? said it was not pulling good on friday - a humid night . i know alot of the alcohol jets are like #100-#140 or whatever ( dbl check'd - more like 100-200 . i'm not that familiar with alcohol use ) , but anyway huge compared to gas jets it appears .
    he is not a "race car tech" , not much motor adjustments , suspension and tire etc work but other than that i think he is a gas n go kinda race car guy . his son drives , he's the money etc . i asked him if he had read the plugs - he had not yet .
    just curious if he is close or way off . i know this is far from complete info .
     
    Last edited: Jul 15, 2013

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