Borla / Holly

Bill Kearley

Supporter
A question re Holly/Borla 8 stack fuel rail / dist interference. Borla's risers aren't quite high enough and Holy's dist. is to tall. Who has a fix?
 
Bill,
If it's a SBF, that combo works using the stock MSD Pro Billet Distributor, 8578 for 351W, or 8579 for 289-302. It gives you just enough clearance (with fuel pressure regulator overhead) to be able to remove/replace the cap & rotor.

Do you need the Holley because you are going sequential? FAST also makes a Dual Sync Distributor but it could be the same as the Holley. I just haven't compared them side to side.

Borla sells throttle body extensions, but I believe are made to extend the length of the air horn above the throttle body, and are not machined for O-ring seals. BTW, buying 8 of those would cost you about $100 more than just getting the MSD distributor...
 

Bill Kearley

Supporter
Thanks, I was told all this and would like to go that way but the guy with the laptop won't, He wants the duel sync dist.
I think Borla told me they have a riser for the base.
 
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