e3pres

I finally installed my Street Avenger 670 carburetor on my '79 this weekend. All I can say is, WOW!!! What a huge difference! I never turned the first screw. The thing was perfect right out of the box. It was well worth the $360. I haven't had any experience with a Demon, but I like this Holley much better than the Edelbrock or Q-Jet that I've tried before. If any of you are in the market for a new carb, I would suggest the Avenger. If you have any questions, don't hesitate to ask.

:cheers:

corvtt1969

i got one and i like it alot probalby that exact one

djgrelli

:iagree: Have one on my 78. Awesome power and with a little tweaking you can get 5% more power. Congrats on your upcoming graduation. My son graduates next Saturday from FSU.

KenSny

:iagree: I got to wonder about all those who say they have problems with the SA670. Mine bolted right up and fired off the first try. Minor tweaking got it perfect.

One thing I did do was to send an email to Holley abour the plastic sight plugs. I got a set of brass plugs in the mail. I gave them my carbs ser# and date purchashed. Some concern on those plugs cracking/leaking, etc. Look in the archives here for more info.

e3pres

Mine came with brass sight plugs installed and a set of clear ones in the box. I guess they've had alot of complaints.

GTR1999

Do you know what the jet sizes are that come in them?
Thanks,
Gary

76Frankenstein

planning on doing that swap on my 76, and will also be adding a performer air gap manifold...any advice on doodads and whatnots needed to adapt the throttle linkage, fuel lines, vacuum lines, etc. from the Quadrajet to the Holley? Thanks.

e3pres

This is what I used. I wouldn't suggest this throttle cable bracket, and I still need to find an air cleaner that will fit. I hope this helps.

Intake Adapter (Only needed if using aftermarket spreadbore intake) http://www.jegs.com/cgi-bin/ncommerc...01&prmenbr=361

Kick-down Stud (Product A) http://www.jegs.com/cgi-bin/ncommerc...29&prmenbr=361

Throttle Cable Stud (350-8009) http://www.jegs.com/cgi-bin/ncommerc...90&prmenbr=361

Throttle Cable Bracket (865-2428) (I didn't really like this part, but it's all O'Reilly's had in stock) http://www.jegs.com/cgi-bin/ncommerc...28&prmenbr=361

76Frankenstein

Thanks for the info...maybe one of these days I'll
actually get around to using it !

Chris69

65/68 jets. I went with 68/72 and it's perfect for my setup.

GTR1999

Thanks, what is your setup? I'll be using it on a 350, with 64 cc sportsman heads,10:1 CR,Xe268 cam,headers,RPM intake,HEI system.
Gary