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Old 04-21-2008, 02:19 PM
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bigrob bigrob is offline
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Join Date: Jan 2008
Location: N. Las Vegas, NV
Cobra Make, Engine: BDR # 126/ K. Craft 306 CID/375 HP- 306 RWHP
Posts: 146
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Did the spring thing and drove her today. Very cool. First of all, the paperwork that came with my carb says it comes with the black spring, which is the firmest of the 7 springs. When I took the housing apart, the spring in there was a plain spring. The spring in the original carb that was on the motor when I purchased the car, is the same plain spring as well. I purchased a spring set from Holley, the plain spring is 5th on the way up to 7, the black one. I compared the 2 from both carbs to the plain one that came in the kit, they are the same. When I compared these to the black one, the black one was much stiffer. Anyway, I went down one size from the plain which is # 5, to the purple & right in the middle of the 7, # 4. I also found the cork gasket on the vacume housing, must have moved when the carb was assembled, and was partially blocking the vacume hole....nice!! Put a new gasket on PROPERLY and have the new spring and the secondaries seem to be coming alive sooner. Did not use the quick change setup, I did'nt like the craftmenship on it, & I do not plan on doing this often. Once I find the right spring, I am done! I may go one lighter still and see what happens.

Thanks for all the help!!
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" Listen to that music! "

'65 BDR #126
'84 Porsche 928S
'01 Corvette C5 coupe
'99 Ford Explorer Limited

Last edited by bigrob; 04-21-2008 at 03:46 PM..
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