Power AdderGetting a Supercharger or Turbocharger? Thinking about using Nitrous? All forced induction and N2O topics discussed here.
Welcome to ThirdGen.org!
Welcome to ThirdGen.org.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!
basically ive been wondering if my 650cfm holley is enough to feed my 305 now that i have a weaind 142 blower, ive been looking at 750 hp series but i dont want to spend that much if i dont need to, thanks for any help
__________________ 89 305,holley 650dp, hooker 2210 long tubes, true duals with x pipe and moroso mufflers, msd pro billet dizzy, msd 6al, comp xr276hr cam ,pro comp aluminum heads,t-56 with ac delco clutch ,spohn x-member and torque arm, 1.65 lunati rockers,weiand 142 blower
11.583 at 119 1.575 60ft www.fquick.com/89305formula
Sbc 355,dart iron eagle platinum heads, comp cams nx276 hyd roller camshaft, master power t76 .96 a/r turbo,CSU 750 cfm blow thru carburetor, TKO 600 , inland empire drive shaft,3.73s with tons of other mods!!!!!!!!!
the last time i went to the track i tried a 600 holley i had at my shop, and i lost .4 in my et and 6 mph, even after jetting it for the most mph, thats why i was thinking i might need a carb bigger then my 650
did you run that carb with the roots blower? all that vac is keeping the powervalve open.............with a roots blower u need a powervalve referenced carb for the supercharger
On a roots type blower application I would run a larger carb. Anything smaller can cause a vacuum under the carb which will cause issues. We run a 1000cfm on a built little 331 ford and a 177 on it. I would run around an 850 or even a 950, the blower will tame it down.
I run a 700 on my 142 on a 350
I called holley and that is what they told me was matched to the supercharger
I think this is what I got http://www.summitracing.com/parts/HLY-0-80572S/
I would guess a 750 would work also
A 750 would be much better than the 600 and would work fine in a street/strip application. If your 600 is a DP, you could switch out the main body to give you a little more air. I think I just read an article that the 600-650-750 all use the same baseplate.
89 305,holley 650dp, hooker 2210 long tubes, true duals with x pipe and moroso mufflers, msd pro billet dizzy, msd 6al, comp xr276hr cam ,pro comp aluminum heads,t-56 with ac delco clutch ,spohn x-member and torque arm, 1.65 lunati rockers,weiand 142 blower
