Don Terrill’s Speed-Talk

There's such an abundance of information pouring through this thread that I hope my friend will visit (and register) and engage the lot of you. Once I'm back in my "office" I'll look a little deeper into all of these replies. My best recourse will to compare this compares to how my own BG ...

I've got a few books on carb tuning plus whatever experience I could through into the mix. Somewhere, in a book by Emanuel or Vizard or somebody was a diagram of the circuits involved and how they interact. I'll dig those out if and when I have the chance. I'll probably direct him to this thread so ...

Best way to find out is change it yourself and see what happens. Keep notes so you don't lose track of what size bleed or jet does/did/might do whatever. I have a fairly good grasp on the cause and effect. Witness how my own (previous) large cammed 355 ran and cruised. Your suggested approach is ex...

Interesting topic to me. I *think* larger IAB starts reducing the idle circuit fuel a little sooner, so you have less overlap with the main system. Conversely, a smaller IAB would extend the range of idle fuel to overlap the main system a bit more. I am looking forward to hearing what the forum car...

The PCV valve is a functional critical part of this system. If the PCV lacks flow the adr will be richer.. A hair more pcv flow tweeks the afr. Can save you a lot of drilling etc. I've been down that PCV rabbit hole before. For such a simple thing it can have a significant impact on many aspects on...

While I understand the function of the IAB and have worked on it tuning my Barry Grant, a fellow car guy has asked a question that I can't say I know how to answer. Or even what's being asked. Quoted: AED 950HO on ZZ502. Tuning the transition slot running a bit rich at cruise. The options are reduci...

Reading this with interest in that I've experimented quite a bit with my Barry Grant VS 750. I've tuned for a lean cruise. 16:1 at 2500 RPM (Locked in OD). While you've obviously worked with the PV seeing as it's a 10.5, could there be some weirdness going on with the valve at the 3000 RPM cruise an...

Years ago with a 500hp 383 combo with my 9" 4200 rpm converter I was running 11.4s @ 123mph A week later I run with a new 8" converter and picked up 3 tenths in the 60ft which carried incremental entire run but was down nearly 2mph. 11.10 @ 121.30mph A few guys said converter slip but I j...

As you know Kevin there is a cross over point with rear gear etc as in a weekend cruiser and we have to keep it real as well. Which puts me in a bit of a dilemma. Do I morph towards more track orientated and go faster? Or forgo the ever increasing cost of fuel and continue to drive it a street car ...

I am a fan of the slide rule,it is something to work towards. With my own combos it is usually 15hp or so relevant. As been discussed previously if you are not using the potential power of the engine work on the rest of the car and leave engine alone. This is another chart worth looking at 20220815...

Speier Racing Head 205cc CNC port and a Profiler casting.

There was a 113 headed L98 with a mini ram that predated this one.

Cold air certainly one of the bet hedges against detonation. That is if the science posted here at Speed-Talk has any merit. Which it does. Chad Speier did a neat thread on his TPI CAI. https://www.thirdgen.org/forums/fabrication/768690-my-cold-air-intake.html Do you know Chads horsepower with his ...

Cold air is certainly one of the best hedges against detonation. That is if the science posted here at Speed-Talk has any merit. Which it does.

Chad Speier did a neat thread on his TPI CAI.

https://www.thirdgen.org/forums/fabrica ... ntake.html

That's as I figured Stan. Thanks.

... the significant effect of inlet air temp on part throttle cruise knock. Also their expectation that well done vacuum advance can improve fuel economy and driveability. I've experienced both of the above cruising my iron headed SBC posted above. Subtle spark knock at very lean cruise and plenty ...