With my current setup, which would be better a 670 Street Avenger or 3310 (750 cfm)?. I want to try a Holley of some sort for better performance than my Edelbrock.

anybody?

it would help to know what your combo is.

Brandon, I apologize. I thought my combo was in my signature.

350 motor, 350 trans, stock stall, 3:73 gears, headers, flows, RPM intake, XE262, 882 heads stock, HEI and currently edelbrock 1406 carb. Thanks

i guess this is in a 75 c10 truck?

im not sure of your usage, goals or if you plan on any upgrades, but if it were me i would go with a 3310 or a 770 street avenger.

with the addition of a secondary metering block and a quick change secondary spring kit to the 3310, it is the same carb as the street avenger.

if we were talking double pumpers id say no more than a 650, but the nice thing about a vacuum secondary carb is the fact that it can be tuned to a wide variety of vehicles.

The 770 avenger is a 4150 series carb, has the metering plates with jets front and back, no PV for the secondarys. I have one on my ride, fixing to swap up to a HP series carb. If you decide on a 770, I could set you up.

most 3310s (3310-2 and up) are 4160 carbs, but can be converted to 4150 with the addition of a secondary metering BLOCK, which is what i was reffering to.

the original 3310-1 was a 4150 style carb, and the street avenger is nothing more than a 3310-1 with a shiny finish and a quick change spring kit. the only difference is the 3310-1 has a secondary power valve, at least mine does.

Brandon, yes it's in my 75'. I plan on buying one of the new hydrolic Voodoo cams this summer. I want this truck to be quick on the street maybe once or twice a year at the track. Whats better for my usage, a 4150 style or 4160?. Craig, what are you asking for your carb?

I have almost the exact set up as you and i have a 3310. Havent had anything else on it but i love it.Its been on the car for years and havent touched it.

id go with the 4150, there is nothing wrong with the 4160 style but the 4150 leaves the door open for more tuning possibilities.

depending on which carb you go with i would also add a quick change secondary kit.

75c10, I have it posted in the Members classified, if you had a "flag" you could check it out. Email me at yappingdog@gci.net. I fyou decide you want to buy the carb, I will knock 25 bucks off the price and you can give that money to Al and Dot for a membership :D