Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> carb question
User Name
lost password?   |   register now

Thread: carb question Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
12-11-2012 09:59 PM
vinniekq2 750 out of the box is a great choice.If you are good with carbs,put an 850 base plate on your 650. This is a real screamer.
Ive also used 4781-2 on a 350,thats an 850 double pumper,it also works well but has a tendency to make you upgrade other parts and go a lot faster
12-11-2012 08:40 PM
carb question

I am running a sbc 350, roller cam 227@50 single pattern cam, .565 lift on a 108LSA. The heads are after market vortec - engine quest lightning -180 intake runner with a 1.94 intake valve. Eddy rpm air gap and 9.9:1 compression. Motor in a 68 camaro with 3.90 gears, 26.5 tall tires, 2,500 stall, 700r4 with a 3.06 1st gear. Car is used on the weekends, street action etc. not a track car.

Car has a holley street hp 650 DP and runs well. I did not want to over carb the car. The carb has straight leg boosters in it. No hesitation, takes off well, no lugging etc. I borrowed a friends old carb which he put a profrom main body on it so it is a 750 DP with downleg boosters. With friends carb, my car had a better signal at idle, and the power from a roll at 2,000 rpm was unreal. When the secondaries opened up it was violent and would push me back in the seat. The car had much more power when the secondaries opened with the 750 downleg boosters than my 650 with straight leg boosters. I was thinking of getting the proform main body to convert my carb or a holley main body with downleg boosters. Question - go with a 750 main body conversion with downleg or maybe annular and get even more power? I know it was a long post. Thanks in advance for the help.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 10:16 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.