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Re: Change in direction w/ carburetor [Re: fast68plymouth] #2611696 01/24/19 05:40 PM 01/24/19 05:40 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By fast68plymouth Quote: The throttle plate itself looks to have blind screws. Throttle plate? Screws? On the left? It looks more like a main body sitting on a table to me. Nice table cloth! Yeah, ain't nuthin' but a bare body shown for the BLP.

Re: Change in direction w/ carburetor [Re: justinp61] #2611703 01/24/19 05:47 PM 01/24/19 05:47 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By justinp61 My carb started as a Bigs 950HP... Funny thing... what Bigs calls a "950" uses the 1.40" venturi main body that QFT/Proform call an "850". The QFT/Proform "950" has a 1.45" venturi, along w/ stepped downleg boosters, rather than non-stepped downlegs their "850" uses.

Re: Change in direction w/ carburetor [Re: BradH] #2611711 01/24/19 05:57 PM 01/24/19 05:57 PM
Joined: Jan 2003 Posts: 17,844 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,844 S.E. Michigan	It seems the number is marketing hoo-ha? Hijack: Would you happen to know of any reason I can't put Proform or QFT metering blocks on my old "1000" (?) Race Demon? The way the bowl sort of wraps around the stock metering blocks makes me question it some. I'd like to get a better tune happening on it as soon as I get some more test time with the QFT Brawler 950. Rich H. Esse Quam Videri

Re: Change in direction w/ carburetor [Re: fast68plymouth] #2611747 01/24/19 07:28 PM 01/24/19 07:28 PM
Joined: Jan 2008 Posts: 2,363 Cotati, CA Dave Hall top fuel
Dave Hall top fuel Joined: Jan 2008 Posts: 2,363 Cotati, CA	Originally Posted By fast68plymouth Quote: The throttle plate itself looks to have blind screws. Throttle plate? Screws? On the left? It looks more like a main body sitting on a table to me. Haha! I looked at it at least twice too!

Re: Change in direction w/ carburetor [Re: BradH] #2611751 01/24/19 07:33 PM 01/24/19 07:33 PM
Joined: Jan 2008 Posts: 2,363 Cotati, CA Dave Hall top fuel
Dave Hall top fuel Joined: Jan 2008 Posts: 2,363 Cotati, CA	If I had to guess the right one flows better. I know nothing about it (obviously) so I have to go with my eye which sees invisible throttle plates!

Re: Change in direction w/ carburetor [Re: BradH] #2611829 01/24/19 10:34 PM 01/24/19 10:34 PM
Joined: Jul 2006 Posts: 528 N.W. Indiana DblOJoe mopar
DblOJoe mopar Joined: Jul 2006 Posts: 528 N.W. Indiana	I'm just gonna say now my bet is the 1.425" v is gonna perform at the track.

Re: Change in direction w/ carburetor [Re: BradH] #2611988 01/25/19 12:06 PM 01/25/19 12:06 PM
Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi ccdave The Ultimate
ccdave The Ultimate Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi	Originally Posted By BradH Originally Posted By ccdave Those are all very nice however you may want to try a BLP main body from Dominic at Thumper carbs. You won't be disappointed. The BLP is the ultimate 4150 main body. I've asked for before & after test data on like-for-like venturi size & booster config comparing the BLP BX4 main body against the "traditional" HP-type 4150 main body, but have yet to see any. I've seen the claims by the carb builders using that style of main body. It's pretty simple IMO: if they ET & MPH better than properly-tuned carbs of the same config that use HP-style main bodies, that would tell me there's something to the design. Do they look cool? Yep. Do they look like they "should" be an improvement vs the older style designs? Yep Have I seen anything "real world" to justify making the switch? Still waiting... Looks like you have already made a MASSAVE investment in cast 4150 carbs and parts. At this point why wait for someone to post results on the capabilities of a BLP main body when you can simply buy one and try it out???

Re: Change in direction w/ carburetor [Re: DblOJoe] #2611996 01/25/19 12:23 PM 01/25/19 12:23 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	The ol' Gold Claw has worked well, once the original (horrible) BG tune was corrected. But I've seen it give up 10 HP and comparable torque to Dwayne's old-school CFS-modified Holley 850 annular. I'm hoping that somewhere in this pile of shiny sh!t there's another carb that will do better, which is why the GC is still the baseline.

Re: Change in direction w/ carburetor [Re: ccdave] #2611999 01/25/19 12:26 PM 01/25/19 12:26 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By ccdave Looks like you have already made a MASSAVE investment in cast 4150 carbs and parts. At this point why wait for someone to post results on the capabilities of a BLP main body when you can simply buy one and try it out??? It would be nice if someone else had spent the $$$ already for the parts & tuning time, instead of leaving me to do it only to find out that looks ain't everything!

Re: Change in direction w/ carburetor [Re: BradH] #2612010 01/25/19 12:41 PM 01/25/19 12:41 PM
Joined: Jul 2006 Posts: 528 N.W. Indiana DblOJoe mopar
DblOJoe mopar Joined: Jul 2006 Posts: 528 N.W. Indiana	I had a old 850 annular that drove great around the pits and I thought ran pretty good on the track. Put a small 950hp on it and went a tenth quicker. Mostly due to shift recovery. Both were out of the box though so I'm kinda interested in your results.

Re: Change in direction w/ carburetor [Re: BradH] #2612012 01/25/19 12:50 PM 01/25/19 12:50 PM
Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt.	What kind of $$$ are we talking for one of those BLP bodies? 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: Change in direction w/ carburetor [Re: fast68plymouth] #2612024 01/25/19 01:13 PM 01/25/19 01:13 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By fast68plymouth What kind of $$$ are we talking for one of those BLP bodies? Bare uncoated BX4 body $208 (no boosters) Coated version for $226 + cost of boosters... maybe $40 for banjos & $50 for billet inserts + cost of installation (requires some special adapter that the standard booster installation tool doesn't come with, IIRC) I dunno... maybe $350+ ?

Re: Change in direction w/ carburetor [Re: BradH] #2612095 01/25/19 03:18 PM 01/25/19 03:18 PM
Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt.	Okay....... so not crazy money. 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: Change in direction w/ carburetor [Re: BradH] #2612106 01/25/19 03:50 PM 01/25/19 03:50 PM
Joined: Jan 2003 Posts: 10,022 MN J JERICOGTX I Live Here
JERICOGTX I Live Here J Joined: Jan 2003 Posts: 10,022 MN	So is the Challenger running again? 69 GTX 68 Road Runner

Re: Change in direction w/ carburetor [Re: JERICOGTX] #2612220 01/25/19 07:26 PM 01/25/19 07:26 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By JERICOGTX So is the Challenger running again? Still ...

Re: Change in direction w/ carburetor [Re: fast68plymouth] #2612222 01/25/19 07:28 PM 01/25/19 07:28 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Originally Posted By fast68plymouth Okay....... so not crazy money. No, but not a priority, either. I have other things to spend the $ on at this time.

Re: Change in direction w/ carburetor [Re: BradH] #2612312 01/25/19 10:42 PM 01/25/19 10:42 PM
Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt.	I wasn’t suggesting you buy one....... I was really just curious about the cost. 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: Change in direction w/ carburetor [Re: BradH] #2612872 01/27/19 02:07 AM 01/27/19 02:07 AM
Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi ccdave The Ultimate
ccdave The Ultimate Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi	Just buy a BLP main body and get er done!! Sell one of those dinosaur carbs on Craigslist to recoop your $$$$. This will end the debate and you finally be able to sleep. I really like mine!!!!!!!!

Re: Change in direction w/ carburetor [Re: fast68plymouth] #2613010 01/27/19 12:42 PM 01/27/19 12:42 PM
Joined: Oct 2003 Posts: 11,684 W. Kentucky justinp61 I Live Here
justinp61 I Live Here Joined: Oct 2003 Posts: 11,684 W. Kentucky	Originally Posted By fast68plymouth What kind of $$$ are we talking for one of those BLP bodies? $256 uncoated with boosters, air bleeds and squirters. https://blp.com/cart/index.php?main_page=product_info&cPath=65_397&products_id=1601 The BLP BX4 and Bigs HP bodies.

Re: Change in direction w/ carburetor [Re: BradH] #2613013 01/27/19 12:53 PM 01/27/19 12:53 PM
Joined: Oct 2003 Posts: 11,684 W. Kentucky justinp61 I Live Here
justinp61 I Live Here Joined: Oct 2003 Posts: 11,684 W. Kentucky	If someone is considering the BLP BX4 main body be aware that Holley air bleeds won't work in them unless they are turned down. I made a fixture to use in my lathe out of a piece of 3/4" aluminum round stock. When I bought my body there was nothing in the description about the difference in the bleeds. When I received mine I was somewhat pi$$ed that my bleeds wouldn't work. The guys BLP stepped up and sent me what I needed and now there is a note at the bottom of the web page noting that BLP bleeds are needed.

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