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For those of you who use PTFE hose for fuel line, which type did you go with, conductive or non-conductive? Where did you purchase your hose and hose ends? And how happy are you with them. I thought all PTFE hose was created equal and just came across an article about the potential dangers of...

For those who have installed a Holley stealth sniper efi, what air cleaner base did you use? I realize they're modeled to look like a 4150 Holley carb, but when I talked to Holley tech, they said the stealth efi unit is a bit longer than a regular 4150 carb and may interfere with an air cleaner...

Did any cars come from the factory with a 14x3 air filter? Say you walked into a chain auto parts store and didn't have a part number. What application could you give them to pull up a standard 14" x 3" air filter?

I was considering picking up a seal kit for my Mallory 140 electric fuel pump before these pumps and kits become obsolete and noticed they have two version of these kits - one for "gas" and one for "alcohol/methanol." The alky version is $42, while the gas version is $130. Mallory 29819 Mallory...

Consider the following engine/drivetrain combo in a 66 Dart: 470 ci B-stroker (10.5:1 SCR) SFT cam 260-ish* @ .050" and 0.650" Modern Cyl Head cnc'd Edelbrock RPM heads w/ Victor 383 manifold and 1.5" open spacer 727, 4.10's, and 30" tall tire The car will be driven a lot on the street and...

For those with aftermarket fuel cells in your street/strip cars, what size are you running? Any photos would be great as well.

Does anyone know a part number for a short factory throttle cable? I found the Pioneer#8417 cable is ~19-1/4" long, but I'm looking for one a few inches shorter. Did Mopar ever have a shorter cable than that?

Have any of you bought any of the factory refurbished carburetors from Holley? I bought a 750 DP Brawler a couple days ago because it was about 50% off the brand new unit. I'm really curious what it'll look like when it gets here. For those that have bought them, what did you think?

How important is the vacuum signal for the electric choke on a Holley carb? I've noticed Proform and other Holley-type carbs do not have a connection to vacuum. Is it to cool the bimetal coil in the choke housing?

I've developed a leak in my old Holley 4779 750 DP. It's disappointing because this thing runs really well. Any idea what could've caused this? I've had it apart several times recently trying to figure this out, but can't seem to nail it down. It's to the point where if the car sits for over...

I'm in the process of installing a new stock replacement 5/16" fuel sending unit. The filter seems to be a pretty loose fit. How can I ensure that the filter stays put on the end of the pick-up tube and doesn't fall off???

Does anyone happen to know off hand what the stock PVCR size for a 4779 (750dp) Holley is?

I'm helping my dad put a fresh 360 build together for his 71 D100 pickup and finally got the block and heads back from the machine shop and have assembled the shortblock. It's pretty much a stock-ish rebuild. The specs of the short block are: '78 360 block, .030 overbore H405CP pistons Stock...

I recently acquired an old 750 3310 Holley. When taking the primary bowl off, this little piece fell out. I don't recall ever seeing this before. Any idea what it is??? Thanks!

Just looking for ideas for mounting an electric fuel pump on the rear frame rail. Can you folks post pictures of how you did it? Did you guys use some sort of rubber isolator mounts?

I'm trying to locate a minor fuel leak at the tank in my 68 Dart. I've replaced the filler neck seal a while back. Is there a seal at the sending unit? Other than that and the fuel line itself, are there any other point that tend to leak? I only noticed the leak after I fill up the tank and...

Where's a good place to buy a decent paintable non-vented gas cap for a 68 Dart? I need to replace the cheap one I've currently got. Thanks!

Does anyone happen to know what the stock idle feed restrictor size is for a regular old 4779 Holley 750 DP?

I've got a minor heat soak/vapor lock issue that I'm trying to fix before the hot season. Currently, I'm running a mechanical Carter street/strip pump to a filter, regulator, then carburetor, as shown below. My question is, what would be the best method to add a return line to my existing...

Has anyone made something like this? Could it potentially help with heat soak/vapor lock issues? Thoughts?

I've been tuning my 650 Proform DP and noticed these open threaded holes. I believe these are emulsion bleeds, but correct me if I'm wrong. Should these have restrictors in them??? What exactly do these do? Thanks!

More Holley tuning questions. I need to procure some tuning parts to cure a couple minor issues with my Proform 650 DP. Specifically, I need some idle feed restrictors and assortment of air bleeds. Is there an all-in-one kit you folks can recommend, or is better to buy the blanks and drill my...

I acquired a slightly used 650 proform mechanical secondary carb (67212) for my 340. I took it apart just to check it out and it looked great. When I put it on to fire it up on the 340, I can't get the idle lower than 1000. The primary and secondary curb idle speed adjusters are all of the...

For those of you who use them, where did you mount your fuel pressure regulator? Can you post pictures of your handy work? Thanks!

Is there a rule of thumb for optimal AFR for making power? Is it 14.7 throughout (idle, tip-in, cruise, WOT, etc)? In the past I've tuned idle mixture based on the highest vacuum reading, but was unsure where the optimal AFR was for cruise and WOT. I finally got my wideband installed, so...

I have the opportunity to get a great deal on this carburetor from a buddy of mine. It's a Proform mechanical secondary 650 carb that seems extremely adjustable. https://www.summitracing.com/parts/pro-67212 Are these carbs any good? Here's the combo I'd be using it on: .030 over 340, 9.6:1...

For those of you with a wideband? Can you guys post a picture of where you mounted your O2 sensor? I understand they should be at a downward angle to prevent condensation buildup. Are there any other requirements? Do they need to bee a certain distance to the collector? Thanks!

I'm thinking about installing a wideband to help my novice *** tune my little 340. Which one do you guys recommend? Innovate, AEM??? Any tips or advice would be greatly appreciated. Thanks!

Which type do you guys prefer (tube-type, or non tube-type)? Can they be redrilled to another size without affecting performance? I've got a load of nozzles except the one I need (.035). I do have a few .025s and .028s (both tube and non-tube type). I'm trying to figure out which one I...

I'm just about to bolt up an RPM Airgap intake on my fresh 340 build with RHS heads and noticed something. When I set the intake on with no gasket and bolt it to one side to measure the other side, I've noticed the gap isn't square (i.e. there is about a 10 thou difference in the intake/head...